mirror of
https://github.com/HorlogeSkynet/thunderbird-user.js.git
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1867 lines
113 KiB
JavaScript
1867 lines
113 KiB
JavaScript
/******
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* name: thunderbird user.js
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* date: 28 August 2021
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* version: v78.0
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* url: https://github.com/HorlogeSkynet/thunderbird-user.js
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* license: MIT (https://github.com/HorlogeSkynet/thunderbird-user.js/blob/master/LICENSE)
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* releases: https://github.com/HorlogeSkynet/thunderbird-user.js/releases
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* README:
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0. Consider using Tor
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1. READ the full README
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* https://github.com/HorlogeSkynet/thunderbird-user.js/blob/master/README.md
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2. READ this
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* https://github.com/HorlogeSkynet/thunderbird-user.js/wiki/1.3-Implementation
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3. If you skipped steps 1 and 2 above (shame on you), then here is the absolute minimum
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* Auto-installing updates for Thunderbird and extensions are disabled (section 0302)
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* Real time binary checks with Google services are disabled (section 0412)
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* Browsing related technologies, and JavaScript disabled. Use your web browser for browsing.
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* You will need to make changes, and to troubleshoot at times (choose wisely, there is always a trade-off).
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While not 100% definitive, search for "[SETUP". If required, add each pref to your overrides section at
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default values (or comment them out and reset them in about:config). Here are the main ones:
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[SETUP-INSTALL] if you experience any issue during Thunderbird setting up, read it
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[SETUP-FEATURE] if you miss some (expected) Thunderbird features, read it
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[SETUP-SECURITY] it's one item, read it
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[SETUP-WEB] can cause some websites to break
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[SETUP-CHROME] changes how Thunderbird itself behaves (i.e. NOT directly website related)
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[SETUP-PERF] may impact performance
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[SETUP-HARDEN] maybe you should consider using the Tor Browser
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* [WARNING] tags are extra special and used sparingly, so heed them
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4. BACKUP your profile folder before implementing (and/or test in a new/cloned profile)
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5. KEEP UP TO DATE: https://github.com/arkenfox/user.js/wiki#small_orange_diamond-maintenance
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* INDEX:
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0100: STARTUP
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0200: GEOLOCATION / LANGUAGE / LOCALE
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0300: QUIET BIRD
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0400: BLOCKLISTS / SAFE BROWSING
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0500: SYSTEM ADD-ONS / EXPERIMENTS
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0600: BLOCK IMPLICIT OUTBOUND
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0700: HTTP* / TCP/IP / DNS / PROXY / SOCKS etc
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0800: HISTORY / FORMS
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1000: CACHE / FAVICONS
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1200: HTTPS (SSL/TLS / OCSP / CERTS / HPKP / CIPHERS)
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1400: FONTS
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1600: HEADERS / REFERERS
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1800: PLUGINS
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2000: MEDIA / CAMERA / MIC
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2200: WINDOW MEDDLING & LEAKS / POPUPS
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2300: WEB WORKERS
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2400: DOM (DOCUMENT OBJECT MODEL) & JAVASCRIPT
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2600: MISCELLANEOUS
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2700: PERSISTENT STORAGE
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2800: SHUTDOWN
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4000: FPI (FIRST PARTY ISOLATION)
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4500: RFP (RESIST FINGERPRINTING)
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4600: RFP ALTERNATIVES
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4700: RFP ALTERNATIVES (NAVIGATOR / USER AGENT (UA) SPOOFING)
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5000: PERSONAL
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6000: THUNDERBIRD (AUTO CONFIG / UI / HEADERS / ADDRESS BOOK)
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6100: EMAIL COMPOSITION (ENCODING / FORMAT / VIEW)
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6200: OTHER THUNDERBIRD COMPONENTS (CHAT / CALENDAR / RSS)
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6300: THUNDERBIRD ENCRYPTION (ENIGMAIL / AUTOCRYPT / GNUPG)
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9999: DEPRECATED / REMOVED / LEGACY / RENAMED
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******/
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/* START: internal custom pref to test for syntax errors
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* [NOTE] In FF60+, not all syntax errors cause parsing to abort i.e. reaching the last debug
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* pref no longer necessarily means that all prefs have been applied. Check the console right
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* after startup for any warnings/error messages related to non-applied prefs
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* [1] https://blog.mozilla.org/nnethercote/2018/03/09/a-new-preferences-parser-for-firefox/ ***/
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user_pref("_user.js.parrot", "START: Oh yes, the Norwegian Blue... what's wrong with it?");
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/* 0000: disable about:config warning
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* FF71-72: chrome://global/content/config.xul
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* FF73+: chrome://global/content/config.xhtml ***/
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user_pref("general.warnOnAboutConfig", false); // XUL/XHTML version
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user_pref("browser.aboutConfig.showWarning", false); // HTML version [FF71+]
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/*** [SECTION 0100]: STARTUP ***/
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user_pref("_user.js.parrot", "0100 syntax error: the parrot's dead!");
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/* 0101: disable default browser check
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* [SETTING] Edit>Preferences>Advanced>Always check to see if Thunderbird is the default mail client on startup ***/
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user_pref("mail.shell.checkDefaultClient", false);
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/* 0102: set START page
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* [SETTING] Edit>Preferences>General>Thunderbird Start Page ***/
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user_pref("mailnews.start_page.enabled", false);
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/*** [SECTION 0200]: GEOLOCATION / LANGUAGE / LOCALE ***/
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user_pref("_user.js.parrot", "0200 syntax error: the parrot's definitely deceased!");
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/** GEOLOCATION ***/
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/* 0201: disable Location-Aware Browsing
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* [NOTE] Best left at default "true", fingerprintable, is already behind a prompt (see 0202)
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* [1] https://www.mozilla.org/firefox/geolocation/ ***/
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user_pref("geo.enabled", false);
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/* 0202: set a default permission for Location (see 0201) [FF58+]
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* 0=always ask (default), 1=allow, 2=block
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* [NOTE] Best left at default "always ask", fingerprintable via Permissions API
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* [SETTING] to add site exceptions: Page Info>Permissions>Access Your Location
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* [SETTING] to manage site exceptions: Options>Privacy & Security>Permissions>Location>Settings ***/
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// user_pref("permissions.default.geo", 2);
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/* 0203: use Mozilla geolocation service instead of Google when geolocation is enabled [FF74+]
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* Optionally enable logging to the console (defaults to false) ***/
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user_pref("geo.provider.network.url", "https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%");
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// user_pref("geo.provider.network.logging.enabled", true); // [HIDDEN PREF]
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/* 0204: disable using the OS's geolocation service ***/
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user_pref("geo.provider.ms-windows-location", false); // [WINDOWS]
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user_pref("geo.provider.use_corelocation", false); // [MAC]
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user_pref("geo.provider.use_gpsd", false); // [LINUX]
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/* 0206: disable geographically specific results/search engines e.g. "browser.search.*.US"
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* i.e. ignore all of Mozilla's various search engines in multiple locales ***/
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user_pref("browser.search.geoSpecificDefaults", false);
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user_pref("browser.search.geoSpecificDefaults.url", "");
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/** LANGUAGE / LOCALE ***/
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/* 0210: set preferred language for displaying web pages
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* [TEST] https://addons.mozilla.org/about ***/
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user_pref("intl.accept_languages", "en-US, en");
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/* 0210b: Set dictionary to US ***/
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user_pref("spellchecker.dictionary", "en-US");
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/* 0211: enforce US English locale regardless of the system locale
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* [SETUP-WEB] May break some input methods e.g xim/ibus for CJK languages, see [2]
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* [1] https://bugzilla.mozilla.org/867501
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* [2] https://bugzilla.mozilla.org/1629630 ***/
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user_pref("javascript.use_us_english_locale", true); // [HIDDEN PREF]
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/* 0212: enforce fallback text encoding to match en-US
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* When the content or server doesn't declare a charset the browser will
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* fallback to the "Current locale" based on your application language
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* [SETTING] General>Language and Appearance>Fonts and Colors>Advanced>Text Encoding for Legacy Content (FF72-)
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* [TEST] https://hsivonen.com/test/moz/check-charset.htm
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* [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/20025 ***/
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user_pref("intl.charset.fallback.override", "windows-1252");
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/*** [SECTION 0300]: QUIET BIRD
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Starting in user.js v68, we only disable the auto-INSTALL of Thunderbird.
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You still get prompts to update, in one click.
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We have NEVER disabled auto-CHECKING, and highly discourage that.
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Previously we also disabled auto-INSTALLING of extensions (0302b).
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There are many legitimate reasons to turn off auto-INSTALLS, including hijacked or monetized
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extensions, time constraints, legacy issues, dev/testing, and fear of breakage/bugs. It is
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still important to do updates for security reasons, please do so manually if you make changes.
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***/
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user_pref("_user.js.parrot", "0300 syntax error: the parrot's not pinin' for the fjords!");
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/* 0301b: disable auto-CHECKING for extension and theme updates ***/
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// user_pref("extensions.update.enabled", false);
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/* 0302a: disable auto-INSTALLING Thunderbird updates [SETUP-INSTALL] [NON-WINDOWS FF65+]
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* [NOTE] In FF65+ on Windows this SETTING (below) is now stored in a file and the pref was removed
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* [SETTING] General>Thunderbird Updates>Check for updates but let you choose to install them... ***/
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user_pref("app.update.auto", false);
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/* 0302b: disable auto-INSTALLING extension and theme updates (after the check in 0301b)
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* [SETTING] about:addons>Extensions>[cog-wheel-icon]>Update Add-ons Automatically (toggle) ***/
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// user_pref("extensions.update.autoUpdateDefault", false);
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/* 0306: disable extension metadata
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* used when installing/updating an extension, and in daily background update checks:
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* when false, extension detail tabs will have no description
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* [NOTE] Unlike arkenfox/user.js, we explicitly disable it ***/
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user_pref("extensions.getAddons.cache.enabled", false);
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/* 0308: disable search engine updates (e.g. OpenSearch)
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* [NOTE] This does not affect Mozilla's built-in or Web Extension search engines
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* [SETTING] General>Thunderbird Updates>Automatically update search engines (FF72-) ***/
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user_pref("browser.search.update", false);
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/* 0310: disable sending the URL of the website where a plugin crashed ***/
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user_pref("dom.ipc.plugins.reportCrashURL", false);
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/* 0320: disable about:addons' Recommendations pane (uses Google Analytics) ***/
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user_pref("extensions.getAddons.showPane", false); // [HIDDEN PREF]
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/* 0321: disable recommendations in about:addons' Extensions and Themes panes [FF68+] ***/
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user_pref("extensions.htmlaboutaddons.recommendations.enabled", false);
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/* 0330: disable telemetry
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* the pref (.unified) affects the behavior of the pref (.enabled)
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* IF unified=false then .enabled controls the telemetry module
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* IF unified=true then .enabled ONLY controls whether to record extended data
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* so make sure to have both set as false.
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* Restoring prompted=0 would make TB ask you on fresh install.
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* [NOTE] FF58+ 'toolkit.telemetry.enabled' is now LOCKED to reflect prerelease
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* or release builds (true and false respectively), see [2].
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* [1] https://firefox-source-docs.mozilla.org/toolkit/components/telemetry/telemetry/internals/preferences.html
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* [2] https://medium.com/georg-fritzsche/data-preference-changes-in-firefox-58-2d5df9c428b5 ***/
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user_pref("toolkit.telemetry.unified", false);
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user_pref("toolkit.telemetry.enabled", false); // see [NOTE] above FF58+
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user_pref("toolkit.telemetry.prompted", 2);
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user_pref("toolkit.telemetry.server", "data:,");
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user_pref("toolkit.telemetry.archive.enabled", false);
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user_pref("toolkit.telemetry.newProfilePing.enabled", false); // [FF55+]
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user_pref("toolkit.telemetry.shutdownPingSender.enabled", false); // [FF55+]
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user_pref("toolkit.telemetry.updatePing.enabled", false); // [FF56+]
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user_pref("toolkit.telemetry.bhrPing.enabled", false); // [FF57+] Background Hang Reporter
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user_pref("toolkit.telemetry.firstShutdownPing.enabled", false); // [FF57+]
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/* 0340: disable Health Reports
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* [SETTING] Privacy & Security>Thunderbird Data Collection & Use>Allow Thunderbird to send technical... data ***/
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user_pref("datareporting.healthreport.uploadEnabled", false);
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/* 0341: disable new data submission, master kill switch [FF41+]
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* If disabled, no policy is shown or upload takes place, ever
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* [1] https://bugzilla.mozilla.org/1195552 ***/
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user_pref("datareporting.policy.dataSubmissionEnabled", false);
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/* 0342: disable Studies (see 0503)
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* [NOTE] This option is missing from Thunderbird's preferences panel (hidden?) ***/
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user_pref("app.shield.optoutstudies.enabled", false);
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/* 0350: disable Crash Reports ***/
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user_pref("breakpad.reportURL", "");
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user_pref("browser.tabs.crashReporting.sendReport", false); // [FF44+]
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user_pref("browser.crashReports.unsubmittedCheck.enabled", false); // [FF51+]
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/* 0351: disable backlogged Crash Reports
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* [SETTING] Privacy & Security>Thunderbird Data Collection & Use>Allow Thunderbird to send backlogged crash reports ***/
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user_pref("browser.crashReports.unsubmittedCheck.autoSubmit2", false); // [FF58+]
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/* 0370: disable UI instrumentation ***/
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user_pref("mail.instrumentation.postUrl", "");
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user_pref("mail.instrumentation.askUser", false);
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user_pref("mail.instrumentation.userOptedIn", false);
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/* 0371: disable about:rights notification on fresh profiles
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* When a profile is loaded for the first time, a bottom notification appears with a button
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* showing "Know your rights...". If clicked, the _special_ page about:rights appears.
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* When `mail.rights.override` is unset (default), Thunderbird falls-back on `mail.rights.version`
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* value. If it's unset (default too) or lower than the current version, notification is displayed.
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* false=always show the notification
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* true=never show the notification
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* [1] https://searchfox.org/comm-esr78/rev/384830b0570096c48770398060f87fbe556f6f01/mail/base/content/specialTabs.js#1218 ***/
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user_pref("mail.rights.override", true); // [DEFAULT: unset]
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// user_pref("mail.rights.version", 1) // [DEFAULT: unset]
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/* 0390: disable Captive Portal detection
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* [1] https://www.eff.org/deeplinks/2017/08/how-captive-portals-interfere-wireless-security-and-privacy
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* [2] https://wiki.mozilla.org/Necko/CaptivePortal ***/
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user_pref("captivedetect.canonicalURL", "");
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user_pref("network.captive-portal-service.enabled", false); // [FF52+]
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/* 0391: disable Network Connectivity checks [FF65+]
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* [1] https://bugzilla.mozilla.org/1460537 ***/
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user_pref("network.connectivity-service.enabled", false);
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/*** [SECTION 0400]: BLOCKLISTS / SAFE BROWSING (SB) ***/
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user_pref("_user.js.parrot", "0400 syntax error: the parrot's passed on!");
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/** BLOCKLISTS ***/
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/* 0401: enforce Firefox blocklist
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* [NOTE] It includes updates for "revoked certificates"
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* [1] https://blog.mozilla.org/security/2015/03/03/revoking-intermediate-certificates-introducing-onecrl/ ***/
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user_pref("extensions.blocklist.enabled", true); // [DEFAULT: true]
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/** SAFE BROWSING (SB)
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Safe Browsing has taken many steps to preserve privacy. *IF* required, a full url is never
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sent to Google, only a PART-hash of the prefix, and this is hidden with noise of other real
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PART-hashes. Google also swear it is anonymized and only used to flag malicious sites.
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Firefox also takes measures such as striping out identifying parameters and since SBv4 (FF57+)
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doesn't even use cookies. (#Turn on browser.safebrowsing.debug to monitor this activity)
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#Required reading [#] https://feeding.cloud.geek.nz/posts/how-safe-browsing-works-in-firefox/
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[1] https://wiki.mozilla.org/Security/Safe_Browsing
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[2] https://support.mozilla.org/en-US/kb/how-does-phishing-and-malware-protection-work
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***/
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/* 0410: disable SB (Safe Browsing)
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* [WARNING] Do this at your own risk! These are the master switches.
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* [SETTING] Privacy & Security>Security>... "Block dangerous and deceptive content" ***/
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// user_pref("browser.safebrowsing.malware.enabled", false);
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// user_pref("browser.safebrowsing.phishing.enabled", false);
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/* 0411: disable SB checks for downloads (both local lookups + remote)
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* This is the master switch for the safebrowsing.downloads* prefs (0412, 0413)
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* [SETTING] Privacy & Security>Security>... "Block dangerous downloads" ***/
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// user_pref("browser.safebrowsing.downloads.enabled", false);
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/* 0412: disable SB checks for downloads (remote)
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* To verify the safety of certain executable files, Firefox may submit some information about the
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* file, including the name, origin, size and a cryptographic hash of the contents, to the Google
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* Safe Browsing service which helps Firefox determine whether or not the file should be blocked
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* [SETUP-SECURITY] If you do not understand this, or you want this protection, then override it ***/
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user_pref("browser.safebrowsing.downloads.remote.enabled", false);
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user_pref("browser.safebrowsing.downloads.remote.url", "");
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/* 0413: disable SB checks for unwanted software
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* [SETTING] Privacy & Security>Security>... "Warn you about unwanted and uncommon software" ***/
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// user_pref("browser.safebrowsing.downloads.remote.block_potentially_unwanted", false);
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// user_pref("browser.safebrowsing.downloads.remote.block_uncommon", false);
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/* 0419: disable 'ignore this warning' on SB warnings
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* If clicked, it bypasses the block for that session. This is a means for admins to enforce SB
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* [TEST] see github wiki APPENDIX A: Test Sites: Section 5
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* [1] https://bugzilla.mozilla.org/1226490 ***/
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// user_pref("browser.safebrowsing.allowOverride", false);
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/*** [SECTION 0500]: SYSTEM ADD-ONS / EXPERIMENTS
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System Add-ons are a method for shipping extensions, considered to be
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built-in features to Firefox, that are hidden from the about:addons UI.
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To view your System Add-ons go to about:support, they are listed under "Firefox Features"
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Some System Add-ons have no on-off prefs. Instead you can manually remove them. Note that app
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updates will restore them. They may also be updated and possibly restored automatically (see 0505)
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* Portable: "...\App\Firefox64\browser\features\" (or "App\Firefox\etc" for 32bit)
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* Windows: "...\Program Files\Mozilla\browser\features" (or "Program Files (X86)\etc" for 32bit)
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* Mac: "...\Applications\Firefox\Contents\Resources\browser\features\"
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[NOTE] On Mac you can right-click on the application and select "Show Package Contents"
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* Linux: "/usr/lib/firefox/browser/features" (or similar)
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[1] https://firefox-source-docs.mozilla.org/toolkit/mozapps/extensions/addon-manager/SystemAddons.html
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[2] https://searchfox.org/mozilla-central/source/browser/extensions
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***/
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user_pref("_user.js.parrot", "0500 syntax error: the parrot's cashed in 'is chips!");
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/* 0503: disable Normandy/Shield [FF60+]
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* Shield is an telemetry system (including Heartbeat) that can also push and test "recipes"
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* [1] https://wiki.mozilla.org/Firefox/Shield
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* [2] https://github.com/mozilla/normandy ***/
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user_pref("app.normandy.enabled", false);
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user_pref("app.normandy.api_url", "");
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/* 0505: disable System Add-on updates ***/
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user_pref("extensions.systemAddon.update.enabled", false); // [FF62+]
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user_pref("extensions.systemAddon.update.url", ""); // [FF44+]
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/* 0506: disable PingCentre telemetry (used in several System Add-ons) [FF57+]
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* Currently blocked by 'datareporting.healthreport.uploadEnabled' (see 0340) ***/
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user_pref("browser.ping-centre.telemetry", false);
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/* 0517: disable Form Autofill
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* [NOTE] Stored data is NOT secure (uses a JSON file)
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* [NOTE] Heuristics controls Form Autofill on forms without @autocomplete attributes
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* [SETTING] Privacy & Security>Forms and Autofill>Autofill addresses (FF74+)
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* [1] https://wiki.mozilla.org/Firefox/Features/Form_Autofill
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* [2] https://www.ghacks.net/2017/05/24/firefoxs-new-form-autofill-is-awesome/ ***/
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user_pref("extensions.formautofill.addresses.enabled", false); // [FF55+]
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user_pref("extensions.formautofill.available", "off"); // [FF56+]
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user_pref("extensions.formautofill.creditCards.enabled", false); // [FF56+]
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user_pref("extensions.formautofill.heuristics.enabled", false); // [FF55+]
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/* 0518: disable Web Compatibility Reporter [FF56+]
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* Web Compatibility Reporter adds a "Report Site Issue" button to send data to Mozilla ***/
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user_pref("extensions.webcompat-reporter.enabled", false);
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/*** [SECTION 0600]: BLOCK IMPLICIT OUTBOUND [not explicitly asked for - e.g. clicked on] ***/
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user_pref("_user.js.parrot", "0600 syntax error: the parrot's no more!");
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/* 0601: disable link prefetching
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* [1] https://developer.mozilla.org/docs/Web/HTTP/Link_prefetching_FAQ ***/
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user_pref("network.prefetch-next", false);
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/* 0602: disable DNS prefetching
|
|
* [1] https://www.ghacks.net/2013/04/27/firefox-prefetching-what-you-need-to-know/
|
|
* [2] https://developer.mozilla.org/docs/Web/HTTP/Headers/X-DNS-Prefetch-Control ***/
|
|
user_pref("network.dns.disablePrefetch", true);
|
|
user_pref("network.dns.disablePrefetchFromHTTPS", true); // [HIDDEN PREF ESR] [DEFAULT: true FF70+]
|
|
/* 0603: disable predictor / prefetching ***/
|
|
user_pref("network.predictor.enabled", false);
|
|
user_pref("network.predictor.enable-prefetch", false); // [FF48+]
|
|
/* 0605: disable link-mouseover opening connection to linked server
|
|
* [1] https://news.slashdot.org/story/15/08/14/2321202/how-to-quash-firefoxs-silent-requests
|
|
* [2] https://www.ghacks.net/2015/08/16/block-firefox-from-connecting-to-sites-when-you-hover-over-links/ ***/
|
|
user_pref("network.http.speculative-parallel-limit", 0);
|
|
/* 0606: disable "Hyperlink Auditing" (click tracking) and enforce same host in case
|
|
* [1] https://www.bleepingcomputer.com/news/software/major-browsers-to-prevent-disabling-of-click-tracking-privacy-risk/ ***/
|
|
user_pref("browser.send_pings", false); // [DEFAULT: false]
|
|
user_pref("browser.send_pings.require_same_host", true);
|
|
/* 0610: don't refresh nor reload pages when tab/window is not active or in idle state
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=518805 ***/
|
|
user_pref("browser.meta_refresh_when_inactive.disabled", true);
|
|
|
|
/*** [SECTION 0700]: HTTP* / TCP/IP / DNS / PROXY / SOCKS etc ***/
|
|
user_pref("_user.js.parrot", "0700 syntax error: the parrot's given up the ghost!");
|
|
/* 0701: disable IPv6
|
|
* IPv6 can be abused, especially regarding MAC addresses. They also do not play nice
|
|
* with VPNs. That's even assuming your ISP and/or router and/or website can handle it.
|
|
* [STATS] Firefox telemetry (June 2020) shows only 5% of all connections are IPv6.
|
|
* [NOTE] This is just an application level fallback. Disabling IPv6 is best done at an
|
|
* OS/network level, and/or configured properly in VPN setups. If you are not masking your IP,
|
|
* then this won't make much difference. If you are masking your IP, then it can only help.
|
|
* [TEST] https://ipleak.org/
|
|
* [1] https://github.com/arkenfox/user.js/issues/437#issuecomment-403740626
|
|
* [2] https://www.internetsociety.org/tag/ipv6-security/ (see Myths 2,4,5,6) ***/
|
|
user_pref("network.dns.disableIPv6", true);
|
|
user_pref("network.notify.IPv6", false);
|
|
/* 0702: disable HTTP2
|
|
* HTTP2 raises concerns with "multiplexing" and "server push", does nothing to
|
|
* enhance privacy, and opens up a number of server-side fingerprinting opportunities.
|
|
* [WARNING] Disabling this made sense in the past, and doesn't break anything, but HTTP2 is
|
|
* at 40% (December 2019) and growing [5]. Don't be that one person using HTTP1.1 on HTTP2 sites
|
|
* [1] https://http2.github.io/faq/
|
|
* [2] https://blog.scottlogic.com/2014/11/07/http-2-a-quick-look.html
|
|
* [3] https://http2.github.io/http2-spec/#rfc.section.10.8
|
|
* [4] https://queue.acm.org/detail.cfm?id=2716278
|
|
* [5] https://w3techs.com/technologies/details/ce-http2/all/all ***/
|
|
// user_pref("network.http.spdy.enabled", false);
|
|
// user_pref("network.http.spdy.enabled.deps", false);
|
|
// user_pref("network.http.spdy.enabled.http2", false);
|
|
// user_pref("network.http.spdy.websockets", false); // [FF65+]
|
|
/* 0703: disable HTTP Alternative Services [FF37+]
|
|
* [SETUP-PERF] Relax this if you have FPI enabled (see 4000) *AND* you understand the
|
|
* consequences. FPI isolates these, but it was designed with the Tor protocol in mind,
|
|
* and the Tor Browser has extra protection, including enhanced sanitizing per Identity.
|
|
* [1] https://tools.ietf.org/html/rfc7838#section-9
|
|
* [2] https://www.mnot.net/blog/2016/03/09/alt-svc ***/
|
|
user_pref("network.http.altsvc.enabled", false);
|
|
user_pref("network.http.altsvc.oe", false);
|
|
/* 0704: enforce the proxy server to do any DNS lookups when using SOCKS
|
|
* e.g. in Tor, this stops your local DNS server from knowing your Tor destination
|
|
* as a remote Tor node will handle the DNS request
|
|
* [1] https://trac.torproject.org/projects/tor/wiki/doc/TorifyHOWTO/WebBrowsers ***/
|
|
user_pref("network.proxy.socks_remote_dns", true);
|
|
/* 0708: disable FTP [FF60+]
|
|
* [1] https://www.ghacks.net/2018/02/20/firefox-60-with-new-preference-to-disable-ftp/ ***/
|
|
user_pref("network.ftp.enabled", false);
|
|
/* 0709: disable using UNC (Uniform Naming Convention) paths [FF61+]
|
|
* [SETUP-CHROME] Can break extensions for profiles on network shares
|
|
* [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/26424 ***/
|
|
user_pref("network.file.disable_unc_paths", true); // [HIDDEN PREF]
|
|
/* 0710: disable GIO as a potential proxy bypass vector
|
|
* Gvfs/GIO has a set of supported protocols like obex, network, archive, computer, dav, cdda,
|
|
* gphoto2, trash, etc. By default only smb and sftp protocols are accepted so far (as of FF64)
|
|
* [1] https://bugzilla.mozilla.org/1433507
|
|
* [2] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/23044
|
|
* [3] https://en.wikipedia.org/wiki/GVfs
|
|
* [4] https://en.wikipedia.org/wiki/GIO_(software) ***/
|
|
user_pref("network.gio.supported-protocols", ""); // [HIDDEN PREF]
|
|
|
|
/*** [SECTION 0800]: HISTORY / FORMS
|
|
Consider your environment (no unwanted eyeballs), your device (restricted access),
|
|
your device's unattended state (locked, encrypted, forensic hardened).
|
|
***/
|
|
user_pref("_user.js.parrot", "0800 syntax error: the parrot's ceased to be!");
|
|
/* 0801: disable location bar using search
|
|
* Don't leak URL typos to a search engine, give an error message instead.
|
|
* Examples: "secretplace,com", "secretplace/com", "secretplace com", "secret place.com"
|
|
* [NOTE] This does **not** affect explicit user action such as using search buttons in the
|
|
* dropdown, or using keyword search shortcuts you configure in options (e.g. 'd' for DuckDuckGo)
|
|
* [SETUP-CHROME] If you don't, or rarely, type URLs, or you use a default search
|
|
* engine that respects privacy, then you probably don't need this ***/
|
|
user_pref("keyword.enabled", false); // [DEFAULT: false]
|
|
/* 0802: disable location bar domain guessing
|
|
* domain guessing intercepts DNS "hostname not found errors" and resends a
|
|
* request (e.g. by adding www or .com). This is inconsistent use (e.g. FQDNs), does not work
|
|
* via Proxy Servers (different error), is a flawed use of DNS (TLDs: why treat .com
|
|
* as the 411 for DNS errors?), privacy issues (why connect to sites you didn't
|
|
* intend to), can leak sensitive data (e.g. query strings: e.g. Princeton attack),
|
|
* and is a security risk (e.g. common typos & malicious sites set up to exploit this) ***/
|
|
user_pref("browser.fixup.alternate.enabled", false);
|
|
/* 0805: disable coloring of visited links - CSS history leak
|
|
* [NOTE] This has NEVER been fully "resolved": in Mozilla/docs it is stated it's
|
|
* only in 'certain circumstances', also see latest comments in [2]
|
|
* [TEST] https://earthlng.github.io/testpages/visited_links.html (see github wiki APPENDIX A on how to use)
|
|
* [1] https://dbaron.org/mozilla/visited-privacy
|
|
* [2] https://bugzilla.mozilla.org/147777
|
|
* [3] https://developer.mozilla.org/docs/Web/CSS/Privacy_and_the_:visited_selector ***/
|
|
user_pref("layout.css.visited_links_enabled", false);
|
|
/* 0807: disable live search suggestions
|
|
/* [NOTE] Both must be true for the location bar to work
|
|
* [SETUP-CHROME] Change these if you trust and use a privacy respecting search engine
|
|
* [SETTING] Search>Provide search suggestions | Show search suggestions in address bar results ***/
|
|
user_pref("browser.search.suggest.enabled", false);
|
|
/* 0860: disable search and form history
|
|
* [SETUP-WEB] Be aware thet autocomplete form data can be read by third parties, see [1] [2]
|
|
* [NOTE] We also clear formdata on exit (see 2803)
|
|
* [SETTING] Privacy & Security>History>Custom Settings>Remember search and form history
|
|
* [1] https://blog.mindedsecurity.com/2011/10/autocompleteagain.html
|
|
* [2] https://bugzilla.mozilla.org/381681 ***/
|
|
user_pref("browser.formfill.enable", false);
|
|
/* 0862: disable browsing and download history
|
|
* [NOTE] We also clear history and downloads on exiting Firefox (see 2803)
|
|
* [SETTING] Privacy & Security>History>Custom Settings>Remember browsing and download history ***/
|
|
user_pref("places.history.enabled", false);
|
|
|
|
/*** [SECTION 1000]: CACHE / FAVICONS
|
|
Cache tracking/fingerprinting techniques [1][2][3] require a cache. Disabling disk (1001)
|
|
*and* memory (1003) caches is one solution; but that's extreme and fingerprintable. A hardened
|
|
Temporary Containers configuration can effectively do the same thing, by isolating every tab [4].
|
|
|
|
We consider avoiding disk cache (1001) so cache is session/memory only (like Private Browsing
|
|
mode), and isolating cache to first party (4001) is sufficient and a good balance between
|
|
risk and performance. ETAGs can also be neutralized by modifying response headers [5], and
|
|
you can clear the cache manually or on a regular basis with an extension.
|
|
|
|
[1] https://en.wikipedia.org/wiki/HTTP_ETag#Tracking_using_ETags
|
|
[2] https://robertheaton.com/2014/01/20/cookieless-user-tracking-for-douchebags/
|
|
[3] https://www.grepular.com/Preventing_Web_Tracking_via_the_Browser_Cache
|
|
[4] https://medium.com/@stoically/enhance-your-privacy-in-firefox-with-temporary-containers-33925cd6cd21
|
|
[5] https://github.com/ghacksuserjs/ghacks-user.js/wiki/4.2.4-Header-Editor
|
|
***/
|
|
user_pref("_user.js.parrot", "1000 syntax error: the parrot's gone to meet 'is maker!");
|
|
/** CACHE ***/
|
|
/* 1001: disable disk cache
|
|
* [SETUP-PERF] If you think disk cache may help (heavy tab user, high-res video),
|
|
* or you use a hardened Temporary Containers, then feel free to override this
|
|
* [NOTE] We also clear cache on exiting Firefox (see 2803) ***/
|
|
user_pref("browser.cache.disk.enable", false);
|
|
/* 1003: disable memory cache
|
|
* capacity: -1=determine dynamically (default), 0=none, n=memory capacity in kilobytes
|
|
* [NOTE] Unlike arkenfox/user.js, we explicitly disable it ***/
|
|
user_pref("browser.cache.memory.enable", false);
|
|
// user_pref("browser.cache.memory.capacity", 0); // [HIDDEN PREF ESR]
|
|
/* 1006: disable permissions manager from writing to disk [RESTART]
|
|
* [NOTE] This means any permission changes are session only
|
|
* [1] https://bugzilla.mozilla.org/967812 ***/
|
|
// user_pref("permissions.memory_only", true); // [HIDDEN PREF]
|
|
|
|
/** FAVICONS ***/
|
|
/* 1030: disable favicons in shortcuts
|
|
* URL shortcuts use a cached randomly named .ico file which is stored in your
|
|
* profile/shortcutCache directory. The .ico remains after the shortcut is deleted.
|
|
* If set to false then the shortcuts use a generic Firefox icon ***/
|
|
user_pref("browser.shell.shortcutFavicons", false);
|
|
/* 1031: disable favicons in history and bookmarks
|
|
* Stored as data blobs in favicons.sqlite, these don't reveal anything that your
|
|
* actual history (and bookmarks) already do. Your history is more detailed, so
|
|
* control that instead; e.g. disable history, clear history on close, use PB mode
|
|
* [NOTE] favicons.sqlite is sanitized on Firefox close, not in-session ***/
|
|
user_pref("browser.chrome.site_icons", false);
|
|
/* 1032: disable favicons in web notifications ***/
|
|
// user_pref("alerts.showFavicons", false); // [DEFAULT: false]
|
|
|
|
/*** [SECTION 1200]: HTTPS (SSL/TLS / OCSP / CERTS / HPKP / CIPHERS)
|
|
Your cipher and other settings can be used in server side fingerprinting
|
|
[TEST] https://www.ssllabs.com/ssltest/viewMyClient.html
|
|
[TEST] https://browserleaks.com/ssl
|
|
[TEST] https://ja3er.com/
|
|
[1] https://www.securityartwork.es/2017/02/02/tls-client-fingerprinting-with-bro/
|
|
***/
|
|
user_pref("_user.js.parrot", "1200 syntax error: the parrot's a stiff!");
|
|
/** SSL (Secure Sockets Layer) / TLS (Transport Layer Security) ***/
|
|
/* 1201: require safe negotiation
|
|
* Blocks connections to servers that don't support RFC 5746 [2] as they're potentially
|
|
* vulnerable to a MiTM attack [3]. A server *without* RFC 5746 can be safe from the attack
|
|
* if it disables renegotiations but the problem is that the browser can't know that.
|
|
* Setting this pref to true is the only way for the browser to ensure there will be
|
|
* no unsafe renegotiations on the channel between the browser and the server.
|
|
* [1] https://wiki.mozilla.org/Security:Renegotiation
|
|
* [2] https://tools.ietf.org/html/rfc5746
|
|
* [3] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3555 ***/
|
|
user_pref("security.ssl.require_safe_negotiation", true);
|
|
/* 1202: control TLS versions with min and max
|
|
* 1=TLS 1.0, 2=TLS 1.1, 3=TLS 1.2, 4=TLS 1.3
|
|
* [STATS] Firefox telemetry (June 2020) shows only 0.16% of SSL handshakes use 1.0 or 1.1
|
|
* [WARNING] Leave these at default, otherwise you alter your TLS fingerprint.
|
|
* [1] https://www.ssllabs.com/ssl-pulse/ ***/
|
|
// user_pref("security.tls.version.min", 3); // [DEFAULT: 3 FF78+]
|
|
// user_pref("security.tls.version.max", 4);
|
|
/* 1204: disable SSL session tracking [FF36+]
|
|
* SSL Session IDs are unique, last up to 24hrs in Firefox, and can be used for tracking
|
|
* [SETUP-PERF] Relax this if you have FPI enabled (see 4000) *AND* you understand the
|
|
* consequences. FPI isolates these, but it was designed with the Tor protocol in mind,
|
|
* and the Tor Browser has extra protection, including enhanced sanitizing per Identity.
|
|
* [1] https://tools.ietf.org/html/rfc5077
|
|
* [2] https://bugzilla.mozilla.org/967977
|
|
* [3] https://arxiv.org/abs/1810.07304 ***/
|
|
user_pref("security.ssl.disable_session_identifiers", true); // [HIDDEN PREF]
|
|
/* 1206: disable TLS1.3 0-RTT (round-trip time) [FF51+]
|
|
* [1] https://firefox-source-docs.mozilla.org/browser/base/sslerrorreport/preferences.html ***/
|
|
user_pref("security.ssl.errorReporting.automatic", false);
|
|
user_pref("security.ssl.errorReporting.enabled", false);
|
|
user_pref("security.ssl.errorReporting.url", "");
|
|
/* 1205: disable TLS1.3 0-RTT (round-trip time) [FF51+]
|
|
* [1] https://github.com/tlswg/tls13-spec/issues/1001
|
|
* [2] https://blog.cloudflare.com/tls-1-3-overview-and-q-and-a/ ***/
|
|
user_pref("security.tls.enable_0rtt_data", false);
|
|
|
|
/** OCSP (Online Certificate Status Protocol)
|
|
#Required reading [#] https://scotthelme.co.uk/revocation-is-broken/ ***/
|
|
/* 1210: enable OCSP Stapling
|
|
* [1] https://blog.mozilla.org/security/2013/07/29/ocsp-stapling-in-firefox/ ***/
|
|
user_pref("security.ssl.enable_ocsp_stapling", true);
|
|
/* 1211: control when to use OCSP fetching (to confirm current validity of certificates)
|
|
* 0=disabled, 1=enabled (default), 2=enabled for EV certificates only
|
|
* OCSP (non-stapled) leaks information about the sites you visit to the CA (cert authority)
|
|
* It's a trade-off between security (checking) and privacy (leaking info to the CA)
|
|
* [NOTE] This pref only controls OCSP fetching and does not affect OCSP stapling
|
|
* [1] https://en.wikipedia.org/wiki/Ocsp ***/
|
|
user_pref("security.OCSP.enabled", 0);
|
|
/* 1212: set OCSP fetch failures (non-stapled, see 1211) to hard-fail [SETUP-WEB]
|
|
* When a CA cannot be reached to validate a cert, Firefox just continues the connection (=soft-fail)
|
|
* Setting this pref to true tells Firefox to instead terminate the connection (=hard-fail)
|
|
* It is pointless to soft-fail when an OCSP fetch fails: you cannot confirm a cert is still valid (it
|
|
* could have been revoked) and/or you could be under attack (e.g. malicious blocking of OCSP servers)
|
|
* [1] https://blog.mozilla.org/security/2013/07/29/ocsp-stapling-in-firefox/
|
|
* [2] https://www.imperialviolet.org/2014/04/19/revchecking.html ***/
|
|
user_pref("security.OCSP.require", true);
|
|
|
|
/** CERTS / HPKP (HTTP Public Key Pinning) ***/
|
|
/* 1220: disable or limit SHA-1 certificates
|
|
* 0=all SHA1 certs are allowed
|
|
* 1=all SHA1 certs are blocked
|
|
* 2=deprecated option that now maps to 1
|
|
* 3=only allowed for locally-added roots (e.g. anti-virus)
|
|
* 4=only allowed for locally-added roots or for certs in 2015 and earlier
|
|
* [SETUP-CHROME] When disabled, some man-in-the-middle devices (e.g. security scanners and
|
|
* antivirus products, may fail to connect to HTTPS sites. SHA-1 is *almost* obsolete.
|
|
* [1] https://blog.mozilla.org/security/2016/10/18/phasing-out-sha-1-on-the-public-web/ ***/
|
|
user_pref("security.pki.sha1_enforcement_level", 1);
|
|
/* 1221: disable Windows 8.1's Microsoft Family Safety cert [FF50+] [WINDOWS]
|
|
* 0=disable detecting Family Safety mode and importing the root
|
|
* 1=only attempt to detect Family Safety mode (don't import the root)
|
|
* 2=detect Family Safety mode and import the root
|
|
* [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/21686 ***/
|
|
user_pref("security.family_safety.mode", 0);
|
|
/* 1222: disable intermediate certificate caching (fingerprinting attack vector) [FF41+] [RESTART]
|
|
* [NOTE] This affects login/cert/key dbs. The effect is all credentials are session-only.
|
|
* Saved logins and passwords are not available. Reset the pref and restart to return them.
|
|
* [1] https://shiftordie.de/blog/2017/02/21/fingerprinting-firefox-users-with-cached-intermediate-ca-certificates-fiprinca/ ***/
|
|
// user_pref("security.nocertdb", true); // [HIDDEN PREF]
|
|
/* 1223: enforce strict pinning
|
|
* PKP (Public Key Pinning) 0=disabled 1=allow user MiTM (such as your antivirus), 2=strict
|
|
* [SETUP-INSTALL] If you rely on an AV (anti-virus) to protect your web browsing
|
|
* by inspecting ALL your web traffic, then leave at current 1 (default).
|
|
* [NOTE] It needs to be set to 1 when connecting to the ProtonMail's Bridge for the first time.
|
|
* [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/16206 ***/
|
|
user_pref("security.cert_pinning.enforcement_level", 2);
|
|
|
|
/** MIXED CONTENT ***/
|
|
/* 1240: disable insecure active content on https pages
|
|
* [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/21323 ***/
|
|
user_pref("security.mixed_content.block_active_content", true); // [DEFAULT: true]
|
|
/* 1241: disable insecure passive content (such as images) on https pages [SETUP-WEB] ***/
|
|
user_pref("security.mixed_content.block_display_content", true);
|
|
/* 1243: block unencrypted requests from Flash on encrypted pages to mitigate MitM attacks [FF59+]
|
|
* [1] https://bugzilla.mozilla.org/1190623 ***/
|
|
user_pref("security.mixed_content.block_object_subrequest", true);
|
|
|
|
/** CIPHERS [WARNING: do not meddle with your cipher suite: see the section 1200 intro]
|
|
* These are all the ciphers still using SHA-1 and CBC which are weaker than the available alternatives. (see "Cipher Suites" in [1])
|
|
* Additionally some have other weaknesses like key sizes of 128 (or lower) [2] and/or no Perfect Forward Secrecy [3].
|
|
* [1] https://browserleaks.com/ssl
|
|
* [2] https://en.wikipedia.org/wiki/Key_size
|
|
* [3] https://en.wikipedia.org/wiki/Forward_secrecy
|
|
***/
|
|
/* 1261: disable 3DES (effective key size < 128 and no PFS)
|
|
* [1] https://en.wikipedia.org/wiki/3des#Security
|
|
* [2] https://en.wikipedia.org/wiki/Meet-in-the-middle_attack
|
|
* [3] https://www-archive.mozilla.org/projects/security/pki/nss/ssl/fips-ssl-ciphersuites.html ***/
|
|
// user_pref("security.ssl3.rsa_des_ede3_sha", false);
|
|
/* 1263: disable DHE (Diffie-Hellman Key Exchange)
|
|
* [1] https://www.eff.org/deeplinks/2015/10/how-to-protect-yourself-from-nsa-attacks-1024-bit-DH ***/
|
|
// user_pref("security.ssl3.dhe_rsa_aes_128_sha", false); // [DEFAULT: false FF78+]
|
|
// user_pref("security.ssl3.dhe_rsa_aes_256_sha", false); // [DEFAULT: false FF78+]
|
|
/* 1264: disable the remaining non-modern cipher suites as of FF78 (in order of preferred by FF) ***/
|
|
// user_pref("security.ssl3.ecdhe_ecdsa_aes_256_sha", false);
|
|
// user_pref("security.ssl3.ecdhe_ecdsa_aes_128_sha", false);
|
|
// user_pref("security.ssl3.ecdhe_rsa_aes_128_sha", false);
|
|
// user_pref("security.ssl3.ecdhe_rsa_aes_256_sha", false);
|
|
// user_pref("security.ssl3.rsa_aes_128_sha", false); // no PFS
|
|
// user_pref("security.ssl3.rsa_aes_256_sha", false); // no PFS
|
|
|
|
/** UI (User Interface) ***/
|
|
/* 1270: display warning on the padlock for "broken security" (if 1201 is false)
|
|
* Bug: warning padlock not indicated for subresources on a secure page! [2]
|
|
* [STATS] SSL Labs (June 2020) reports 98.8% of sites have secure renegotiation [3]
|
|
* [1] https://wiki.mozilla.org/Security:Renegotiation
|
|
* [2] https://bugzilla.mozilla.org/1353705
|
|
* [3] https://www.ssllabs.com/ssl-pulse/ ***/
|
|
user_pref("security.ssl.treat_unsafe_negotiation_as_broken", true);
|
|
/* 1271: control "Add Security Exception" dialog on SSL warnings
|
|
* 0=do neither 1=pre-populate url 2=pre-populate url + pre-fetch cert (default)
|
|
* [1] https://github.com/pyllyukko/user.js/issues/210 ***/
|
|
user_pref("browser.ssl_override_behavior", 1);
|
|
/* 1272: display advanced information on Insecure Connection warning pages
|
|
* only works when it's possible to add an exception
|
|
* i.e. it doesn't work for HSTS discrepancies (https://subdomain.preloaded-hsts.badssl.com/)
|
|
* [TEST] https://expired.badssl.com/ ***/
|
|
user_pref("browser.xul.error_pages.expert_bad_cert", true);
|
|
/* 1273: display "insecure" icon and "Not Secure" text on HTTP sites ***/
|
|
user_pref("security.insecure_connection_icon.enabled", true); // [FF59+] [DEFAULT: true FF70+]
|
|
user_pref("security.insecure_connection_text.enabled", true); // [FF60+]
|
|
/* 1280: display warnings when insecure HTTP connections are made ***/
|
|
user_pref("security.warn_entering_weak", true);
|
|
user_pref("security.warn_leaving_secure", true);
|
|
user_pref("security.warn_viewing_mixed", true);
|
|
|
|
/*** [SECTION 1400]: FONTS ***/
|
|
user_pref("_user.js.parrot", "1400 syntax error: the parrot's bereft of life!");
|
|
/* 1401: disable websites choosing fonts (0=block, 1=allow)
|
|
* This can limit most (but not all) JS font enumeration which is a high entropy fingerprinting vector
|
|
* [SETUP-WEB] Can break some PDFs (missing text). Limiting to default fonts can "uglify" the web
|
|
* [SETTING] General>Language and Appearance>Fonts & Colors>Advanced>Allow pages to choose... ***/
|
|
user_pref("browser.display.use_document_fonts", 0);
|
|
/* 1403: disable icon fonts (glyphs) and local fallback rendering
|
|
* [1] https://bugzilla.mozilla.org/789788
|
|
* [2] https://gitlab.torproject.org/legacy/trac/-/issues/8455 ***/
|
|
user_pref("gfx.downloadable_fonts.enabled", false); // [FF41+]
|
|
user_pref("gfx.downloadable_fonts.fallback_delay", -1);
|
|
/* 1404: disable rendering of SVG OpenType fonts
|
|
* [1] https://wiki.mozilla.org/SVGOpenTypeFonts - iSECPartnersReport recommends to disable this ***/
|
|
user_pref("gfx.font_rendering.opentype_svg.enabled", false);
|
|
/* 1408: disable graphite
|
|
* Graphite has had many critical security issues in the past, see [1]
|
|
* [1] https://www.mozilla.org/security/advisories/mfsa2017-15/#CVE-2017-7778
|
|
* [2] https://en.wikipedia.org/wiki/Graphite_(SIL) ***/
|
|
user_pref("gfx.font_rendering.graphite.enabled", false);
|
|
|
|
/*** [SECTION 1600]: HEADERS / REFERERS
|
|
Only *cross domain* referers need controlling: leave 1601, 1602, 1605 and 1606 alone
|
|
---
|
|
harden it a bit: set XOriginPolicy (1603) to 1 (as per the settings below)
|
|
harden it a bit more: set XOriginPolicy (1603) to 2 (and optionally 1604 to 1 or 2), expect breakage
|
|
---
|
|
If you want any REAL control over referers and breakage, then use an extension. Either:
|
|
uMatrix: limited by scope, all requests are spoofed or not-spoofed
|
|
Smart Referrer: granular with source<->destination, whitelists
|
|
---
|
|
|
|
full URI: https://example.com:8888/foo/bar.html?id=1234
|
|
scheme+host+port+path: https://example.com:8888/foo/bar.html
|
|
scheme+host+port: https://example.com:8888
|
|
---
|
|
#Required reading [#] https://feeding.cloud.geek.nz/posts/tweaking-referrer-for-privacy-in-firefox/
|
|
***/
|
|
user_pref("_user.js.parrot", "1600 syntax error: the parrot rests in peace!");
|
|
/* 1601: ALL: control when images/links send a referer
|
|
* 0=never, 1=send only when links are clicked, 2=for links and images (default) ***/
|
|
user_pref("network.http.sendRefererHeader", 0); // [DEFAULT: 2]
|
|
/* 1602: ALL: control the amount of information to send
|
|
* 0=send full URI (default), 1=scheme+host+port+path, 2=scheme+host+port ***/
|
|
// user_pref("network.http.referer.trimmingPolicy", 0); // [DEFAULT: 0]
|
|
/* 1603: CROSS ORIGIN: control when to send a referer
|
|
* 0=always (default), 1=only if base domains match, 2=only if hosts match
|
|
* [SETUP-WEB] Known to cause issues with older modems/routers and some sites e.g vimeo, icloud ***/
|
|
user_pref("network.http.referer.XOriginPolicy", 2);
|
|
/* 1604: CROSS ORIGIN: control the amount of information to send [FF52+]
|
|
* 0=send full URI (default), 1=scheme+host+port+path, 2=scheme+host+port ***/
|
|
user_pref("network.http.referer.XOriginTrimmingPolicy", 0); // [DEFAULT: 0]
|
|
/* 1605: ALL: disable spoofing a referer
|
|
* [WARNING] Do not set this to true, as spoofing effectively disables the anti-CSRF
|
|
* (Cross-Site Request Forgery) protections that some sites may rely on ***/
|
|
// user_pref("network.http.referer.spoofSource", false); // [DEFAULT: false]
|
|
/* 1606: ALL: set the default Referrer Policy [FF59+]
|
|
* 0=no-referer, 1=same-origin, 2=strict-origin-when-cross-origin, 3=no-referrer-when-downgrade
|
|
* [NOTE] This is only a default, it can be overridden by a site-controlled Referrer Policy
|
|
* [1] https://www.w3.org/TR/referrer-policy/
|
|
* [2] https://developer.mozilla.org/docs/Web/HTTP/Headers/Referrer-Policy
|
|
* [3] https://blog.mozilla.org/security/2018/01/31/preventing-data-leaks-by-stripping-path-information-in-http-referrers/ ***/
|
|
user_pref("network.http.referer.defaultPolicy", 0); // [DEFAULT: 3]
|
|
user_pref("network.http.referer.defaultPolicy.pbmode", 0); // [DEFAULT: 2]
|
|
/* 1610: ALL: enable the DNT (Do Not Track) HTTP header
|
|
* [NOTE] DNT is enforced with Enhanced Tracking Protection regardless of this pref
|
|
* [SETTING] Privacy & Security>Enhanced Tracking Protection>Send websites a "Do Not Track" signal... ***/
|
|
user_pref("privacy.donottrackheader.enabled", true);
|
|
|
|
/*** [SECTION 1800]: PLUGINS ***/
|
|
user_pref("_user.js.parrot", "1800 syntax error: the parrot's pushing up daisies!");
|
|
/* 1803: disable Flash plugin
|
|
* 0=deactivated, 1=ask, 2=enabled
|
|
* ESR52.x is the last branch to *fully* support NPAPI, FF52+ stable only supports Flash
|
|
* [NOTE] You can still override individual sites via site permissions ***/
|
|
user_pref("plugin.state.flash", 0);
|
|
/* 1820: disable GMP (Gecko Media Plugins)
|
|
* [1] https://wiki.mozilla.org/GeckoMediaPlugins ***/
|
|
// user_pref("media.gmp-provider.enabled", false);
|
|
/* 1825: disable widevine CDM (Content Decryption Module)
|
|
* [SETUP-WEB] if you *need* CDM, e.g. Netflix, Amazon Prime, Hulu, whatever ***/
|
|
user_pref("media.gmp-widevinecdm.visible", false);
|
|
user_pref("media.gmp-widevinecdm.enabled", false);
|
|
/* 1830: disable all DRM content (EME: Encryption Media Extension)
|
|
* [SETUP-WEB] if you *need* EME, e.g. Netflix, Amazon Prime, Hulu, whatever
|
|
* [SETTING] General>DRM Content>Play DRM-controlled content
|
|
* [1] https://www.eff.org/deeplinks/2017/10/drms-dead-canary-how-we-just-lost-web-what-we-learned-it-and-what-we-need-do-next ***/
|
|
user_pref("media.eme.enabled", false);
|
|
|
|
/*** [SECTION 2000]: MEDIA / CAMERA / MIC ***/
|
|
user_pref("_user.js.parrot", "2000 syntax error: the parrot's snuffed it!");
|
|
/* 2001: disable WebRTC (Web Real-Time Communication)
|
|
* [SETUP-WEB] WebRTC can leak your IP address from behind your VPN, but if this is not
|
|
* in your threat model, and you want Real-Time Communication, this is the pref for you
|
|
* [1] https://www.privacytools.io/#webrtc ***/
|
|
user_pref("media.peerconnection.enabled", false);
|
|
/* 2002: limit WebRTC IP leaks if using WebRTC
|
|
* In FF70+ these settings match Mode 4 (Mode 3 in older versions) (see [3])
|
|
* [TEST] https://browserleaks.com/webrtc
|
|
* [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1189041,1297416,1452713
|
|
* [2] https://wiki.mozilla.org/Media/WebRTC/Privacy
|
|
* [3] https://tools.ietf.org/html/draft-ietf-rtcweb-ip-handling-12#section-5.2 ***/
|
|
user_pref("media.peerconnection.ice.default_address_only", true);
|
|
user_pref("media.peerconnection.ice.no_host", true); // [FF51+]
|
|
user_pref("media.peerconnection.ice.proxy_only_if_behind_proxy", true); // [FF70+]
|
|
/* 2010: disable WebGL (Web Graphics Library)
|
|
* [SETUP-WEB] When disabled, may break some websites. When enabled, provides high entropy,
|
|
* especially with readPixels(). Some of the other entropy is lessened with RFP (see 4501)
|
|
* [1] https://www.contextis.com/resources/blog/webgl-new-dimension-browser-exploitation/
|
|
* [2] https://security.stackexchange.com/questions/13799/is-webgl-a-security-concern ***/
|
|
user_pref("webgl.disabled", true);
|
|
user_pref("webgl.enable-webgl2", false);
|
|
/* 2012: limit WebGL ***/
|
|
user_pref("webgl.min_capability_mode", true);
|
|
user_pref("webgl.disable-fail-if-major-performance-caveat", true);
|
|
/* 2022: disable screensharing ***/
|
|
user_pref("media.getusermedia.screensharing.enabled", false);
|
|
user_pref("media.getusermedia.browser.enabled", false);
|
|
user_pref("media.getusermedia.audiocapture.enabled", false);
|
|
/* 2030: disable autoplay of HTML5 media [FF63+]
|
|
* 0=Allow all, 1=Block non-muted media (default in FF67+), 2=Prompt (removed in FF66), 5=Block all (FF69+)
|
|
* [NOTE] You can set exceptions under site permissions
|
|
* [SETTING] Privacy & Security>Permissions>Autoplay>Settings>Default for all websites ***/
|
|
// user_pref("media.autoplay.default", 5);
|
|
/* 2031: disable autoplay of HTML5 media if you interacted with the site [FF78+]
|
|
* 0=sticky (default), 1=transient, 2=user
|
|
* [NOTE] If you have trouble with some video sites, then add an exception (see 2030)
|
|
* [1] https://html.spec.whatwg.org/multipage/interaction.html#sticky-activation ***/
|
|
user_pref("media.autoplay.blocking_policy", 2);
|
|
|
|
/*** [SECTION 2200]: WINDOW MEDDLING & LEAKS / POPUPS ***/
|
|
user_pref("_user.js.parrot", "2200 syntax error: the parrot's 'istory!");
|
|
/* 2201: prevent websites from disabling new window features ***/
|
|
user_pref("dom.disable_window_open_feature.close", true);
|
|
user_pref("dom.disable_window_open_feature.location", true); // [DEFAULT: true]
|
|
user_pref("dom.disable_window_open_feature.menubar", true);
|
|
user_pref("dom.disable_window_open_feature.minimizable", true);
|
|
user_pref("dom.disable_window_open_feature.personalbar", true); // bookmarks toolbar
|
|
user_pref("dom.disable_window_open_feature.resizable", true); // [DEFAULT: true]
|
|
user_pref("dom.disable_window_open_feature.status", true); // [DEFAULT: true]
|
|
user_pref("dom.disable_window_open_feature.titlebar", true);
|
|
user_pref("dom.disable_window_open_feature.toolbar", true);
|
|
/* 2202: prevent scripts from moving and resizing open windows ***/
|
|
user_pref("dom.disable_window_move_resize", true);
|
|
/* 2203: open links targeting new windows in a new tab instead
|
|
* This stops malicious window sizes and some screen resolution leaks.
|
|
* You can still right-click a link and open in a new window.
|
|
* [NOTE] Unlike arkenfox/user.js, we explicitly set them
|
|
* [TEST] https://arkenfox.github.io/TZP/tzp.html#screen
|
|
* [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/9881 ***/
|
|
user_pref("browser.link.open_newwindow", 3);
|
|
user_pref("browser.link.open_newwindow.restriction", 0);
|
|
/* 2204: disable Fullscreen API (requires user interaction) to prevent screen-resolution leaks
|
|
* [NOTE] You can still manually toggle the browser's fullscreen state (F11),
|
|
* but this pref will disable embedded video/game fullscreen controls, e.g. youtube
|
|
* [TEST] https://arkenfox.github.io/TZP/tzp.html#screen ***/
|
|
// user_pref("full-screen-api.enabled", false); // [DEFAULT: false]
|
|
/* 2210: block popup windows
|
|
* [SETTING] Privacy & Security>Permissions>Block pop-up windows ***/
|
|
user_pref("dom.disable_open_during_load", true);
|
|
/* 2212: limit events that can cause a popup [SETUP-WEB]
|
|
* default is "change click dblclick auxclick mouseup pointerup notificationclick reset submit touchend contextmenu" ***/
|
|
user_pref("dom.popup_allowed_events", "click dblclick");
|
|
|
|
/*** [SECTION 2300]: WEB WORKERS
|
|
A worker is a JS "background task" running in a global context, i.e. it is different from
|
|
the current window. Workers can spawn new workers (must be the same origin & scheme),
|
|
including service and shared workers. Shared workers can be utilized by multiple scripts and
|
|
communicate between browsing contexts (windows/tabs/iframes) and can even control your cache.
|
|
[NOTE] uMatrix 1.2.0+ allows a per-scope control for workers (2301-deprecated) and service workers (2302)
|
|
#Required reading [#] https://github.com/gorhill/uMatrix/releases/tag/1.2.0
|
|
[1] Web Workers: https://developer.mozilla.org/docs/Web/API/Web_Workers_API
|
|
[2] Worker: https://developer.mozilla.org/docs/Web/API/Worker
|
|
[3] Service Worker: https://developer.mozilla.org/docs/Web/API/Service_Worker_API
|
|
[4] SharedWorker: https://developer.mozilla.org/docs/Web/API/SharedWorker
|
|
[5] ChromeWorker: https://developer.mozilla.org/docs/Web/API/ChromeWorker
|
|
[6] Notifications: https://support.mozilla.org/questions/1165867#answer-981820
|
|
***/
|
|
user_pref("_user.js.parrot", "2300 syntax error: the parrot's off the twig!");
|
|
/* 2302: disable service workers [FF32, FF44-compat]
|
|
* Service workers essentially act as proxy servers that sit between web apps, and the
|
|
* browser and network, are event driven, and can control the web page/site it is associated
|
|
* with, intercepting and modifying navigation and resource requests, and caching resources.
|
|
* [NOTE] Service worker APIs are hidden (in Firefox) and cannot be used when in PB mode.
|
|
* [NOTE] Service workers only run over HTTPS. Service workers have no DOM access.
|
|
* [SETUP-WEB] Disabling service workers will break some sites. This pref is required true for
|
|
* service worker notifications (2304), push notifications (disabled, 2305) and service worker
|
|
* cache (2740). If you enable this pref, then check those settings as well ***/
|
|
user_pref("dom.serviceWorkers.enabled", false);
|
|
/* 2304: disable Web Notifications
|
|
* [NOTE] Web Notifications can also use service workers (2302) and are behind a prompt (2306)
|
|
* [NOTE] Unlike arkenfox/user.js, we explicitly disable them as they are enabled by default
|
|
* [1] https://developer.mozilla.org/docs/Web/API/Notifications_API ***/
|
|
user_pref("dom.webnotifications.enabled", false); // [FF22+]
|
|
user_pref("dom.webnotifications.serviceworker.enabled", false); // [FF44+]
|
|
/* 2305: disable Push Notifications [FF44+]
|
|
* Push is an API that allows websites to send you (subscribed) messages even when the site
|
|
* isn't loaded, by pushing messages to your userAgentID through Mozilla's Push Server.
|
|
* [NOTE] Push requires service workers (2302) to subscribe to and display, and is behind
|
|
* a prompt (2306). Disabling service workers alone doesn't stop Firefox polling the
|
|
* Mozilla Push Server. To remove all subscriptions, reset your userAgentID (in about:config
|
|
* or on start), and you will get a new one within a few seconds.
|
|
* [1] https://support.mozilla.org/en-US/kb/push-notifications-firefox
|
|
* [2] https://developer.mozilla.org/en-US/docs/Web/API/Push_API ***/
|
|
user_pref("dom.push.enabled", false);
|
|
// user_pref("dom.push.userAgentID", "");
|
|
/* 2306: set a default permission for Notifications (both 2304 and 2305) [FF58+]
|
|
* 0=always ask (default), 1=allow, 2=block
|
|
* [NOTE] Best left at default "always ask", fingerprintable via Permissions API
|
|
* [SETTING] to add site exceptions: Page Info>Permissions>Receive Notifications
|
|
* [SETTING] to manage site exceptions: Options>Privacy & Security>Permissions>Notifications>Settings ***/
|
|
// user_pref("permissions.default.desktop-notification", 2);
|
|
|
|
/*** [SECTION 2400]: DOM (DOCUMENT OBJECT MODEL) & JAVASCRIPT ***/
|
|
user_pref("_user.js.parrot", "2400 syntax error: the parrot's kicked the bucket!");
|
|
/* 2401: disable website control over browser right-click context menu
|
|
* [NOTE] Shift-Right-Click will always bring up the browser right-click context menu
|
|
* [NOTE] Unlike arkenfox/user.js, we explicitly disable it ***/
|
|
user_pref("dom.event.contextmenu.enabled", false);
|
|
/* 2402: disable website access to clipboard events/content [SETUP-HARDEN]
|
|
* [NOTE] This will break some sites' functionality e.g. Outlook, Twitter, Facebook, Wordpress
|
|
* This applies to onCut/onCopy/onPaste events - i.e. it requires interaction with the website
|
|
* [WARNING] If both 'middlemouse.paste' and 'general.autoScroll' are true (at least one
|
|
* is default false) then enabling this pref can leak clipboard content, see [2]
|
|
* [NOTE] Unlike arkenfox/user.js, we explicitly disable it
|
|
* [1] https://www.ghacks.net/2014/01/08/block-websites-reading-modifying-clipboard-contents-firefox/
|
|
* [2] https://bugzilla.mozilla.org/1528289 */
|
|
user_pref("dom.event.clipboardevents.enabled", false);
|
|
/* 2404: disable clipboard commands (cut/copy) from "non-privileged" content [FF41+]
|
|
* this disables document.execCommand("cut"/"copy") to protect your clipboard
|
|
* [1] https://bugzilla.mozilla.org/1170911 ***/
|
|
user_pref("dom.allow_cut_copy", false);
|
|
/* 2405: disable "Confirm you want to leave" dialog on page close
|
|
* Does not prevent JS leaks of the page close event.
|
|
* [1] https://developer.mozilla.org/docs/Web/Events/beforeunload
|
|
* [2] https://support.mozilla.org/questions/1043508 ***/
|
|
user_pref("dom.disable_beforeunload", true);
|
|
/* 2414: disable shaking the screen ***/
|
|
user_pref("dom.vibrator.enabled", false);
|
|
/* 2420: disable asm.js [FF22+] [SETUP-PERF]
|
|
* [1] http://asmjs.org/
|
|
* [2] https://www.mozilla.org/security/advisories/mfsa2015-29/
|
|
* [3] https://www.mozilla.org/security/advisories/mfsa2015-50/
|
|
* [4] https://www.mozilla.org/security/advisories/mfsa2017-01/#CVE-2017-5375
|
|
* [5] https://www.mozilla.org/security/advisories/mfsa2017-05/#CVE-2017-5400
|
|
* [6] https://rh0dev.github.io/blog/2017/the-return-of-the-jit/ ***/
|
|
user_pref("javascript.options.asmjs", false);
|
|
/* 2421: disable Ion and baseline JIT to harden against JS exploits [SETUP-HARDEN]
|
|
* [NOTE] In FF75+, when **both** Ion and JIT are disabled, **and** the new
|
|
* hidden pref is enabled, then Ion can still be used by extensions (1599226)
|
|
* [WARNING] Disabling Ion/JIT can cause some site issues and performance loss
|
|
* [NOTE] Unlike arkenfox/user.js, we explicitly disable them
|
|
* [1] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0817 ***/
|
|
user_pref("javascript.options.ion", false);
|
|
user_pref("javascript.options.baselinejit", false);
|
|
/* 2422: disable WebAssembly [FF52+] [SETUP-PERF]
|
|
* [NOTE] In FF71+ this no longer affects extensions (1576254)
|
|
* [1] https://developer.mozilla.org/docs/WebAssembly ***/
|
|
user_pref("javascript.options.wasm", false);
|
|
/* 2426: disable Intersection Observer API [FF55+] [RESTART]
|
|
* [NOTE] Disabling it may break the error console (CTRL+SHIFT+J)
|
|
* [1] https://developer.mozilla.org/docs/Web/API/Intersection_Observer_API
|
|
* [2] https://w3c.github.io/IntersectionObserver/
|
|
* [3] https://bugzilla.mozilla.org/1243846 ***/
|
|
// user_pref("dom.IntersectionObserver.enabled", false);
|
|
/* 2429: enable (limited but sufficient) window.opener protection [FF65+]
|
|
* Makes rel=noopener implicit for target=_blank in anchor and area elements when no rel attribute is set ***/
|
|
user_pref("dom.targetBlankNoOpener.enabled", true); // [DEFAULT: true FF78+]
|
|
|
|
/*** [SECTION 2500]: HARDWARE FINGERPRINTING ***/
|
|
user_pref("_user.js.parrot", "2500 syntax error: the parrot's shuffled off 'is mortal coil!");
|
|
/* 2502: disable Battery Status API
|
|
* Initially a Linux issue (high precision readout) that was fixed.
|
|
* However, it is still another metric for fingerprinting, used to raise entropy.
|
|
* e.g. do you have a battery or not, current charging status, charge level, times remaining etc
|
|
* [NOTE] From FF52+ Battery Status API is only available in chrome/privileged code. see [1]
|
|
* [NOTE] Unlike arkenfox/user.js, we explicitly disable it
|
|
* [1] https://bugzilla.mozilla.org/1313580 ***/
|
|
user_pref("dom.battery.enabled", false);
|
|
/* 2505: disable media device enumeration [FF29+]
|
|
* [NOTE] media.peerconnection.enabled should also be set to false (see 2001)
|
|
* [NOTE] Unlike arkenfox/user.js, we explicitly disable it
|
|
* [1] https://wiki.mozilla.org/Media/getUserMedia
|
|
* [2] https://developer.mozilla.org/docs/Web/API/MediaDevices/enumerateDevices ***/
|
|
user_pref("media.navigator.enabled", false);
|
|
/* 2508: disable hardware acceleration to reduce graphics fingerprinting [SETUP-HARDEN]
|
|
* [WARNING] Affects text rendering (fonts will look different), impacts video performance,
|
|
* and parts of Quantum that utilize the GPU will also be affected as they are rolled out
|
|
* [SETTING] General>Performance>Custom>Use hardware acceleration when available
|
|
* [NOTE] Unlike arkenfox/user.js, we explicitly disable it
|
|
* [1] https://wiki.mozilla.org/Platform/GFX/HardwareAcceleration ***/
|
|
user_pref("gfx.direct2d.disabled", true); // [WINDOWS]
|
|
user_pref("layers.acceleration.disabled", true);
|
|
/* 2510: disable Web Audio API [FF51+]
|
|
* [NOTE] Unlike arkenfox/user.js, we explicitly disable it
|
|
* [1] https://bugzilla.mozilla.org/1288359 ***/
|
|
user_pref("dom.webaudio.enabled", false);
|
|
/* 2517: disable Media Capabilities API [FF63+]
|
|
* [WARNING] This *may* affect media performance if disabled, no one is sure
|
|
* [NOTE] Unlike arkenfox/user.js, we explicitly disable it
|
|
* [1] https://github.com/WICG/media-capabilities
|
|
* [2] https://wicg.github.io/media-capabilities/#security-privacy-considerations ***/
|
|
user_pref("media.media-capabilities.enabled", false);
|
|
/* 2520: disable virtual reality devices
|
|
* Optional protection depending on your connected devices
|
|
* [NOTE] Unlike arkenfox/user.js, we explicitly disable them
|
|
* [1] https://developer.mozilla.org/docs/Web/API/WebVR_API ***/
|
|
user_pref("dom.vr.enabled", false);
|
|
/* 2521: set a default permission for Virtual Reality (see 2520) [FF73+]
|
|
* 0=always ask (default), 1=allow, 2=block
|
|
* [SETTING] to add site exceptions: Page Info>Permissions>Access Virtual Reality Devices
|
|
* [SETTING] to manage site exceptions: Options>Privacy & Security>Permissions>Virtual Reality>Settings
|
|
* [NOTE] Unlike arkenfox/user.js, we explicitly disable it ***/
|
|
user_pref("permissions.default.xr", 2);
|
|
|
|
/*** [SECTION 2600]: MISCELLANEOUS ***/
|
|
user_pref("_user.js.parrot", "2600 syntax error: the parrot's run down the curtain!");
|
|
/* 2601: prevent accessibility services from accessing your browser [RESTART] [SETUP-FEATURE]
|
|
* [SETTING] Privacy & Security>Permissions>Prevent accessibility services from accessing your browser (FF80 or lower)
|
|
* [1] https://support.mozilla.org/kb/accessibility-services ***/
|
|
user_pref("accessibility.force_disabled", 1);
|
|
/* 2602: disable sending additional analytics to web servers
|
|
* [1] https://developer.mozilla.org/docs/Web/API/Navigator/sendBeacon ***/
|
|
user_pref("beacon.enabled", false);
|
|
/* 2607: disable various developer tools in browser context
|
|
* [SETTING] Devtools>Advanced Settings>Enable browser chrome and add-on debugging toolboxes
|
|
* [1] https://github.com/pyllyukko/user.js/issues/179#issuecomment-246468676 ***/
|
|
user_pref("devtools.chrome.enabled", false);
|
|
/* 2608: disable remote debugging
|
|
* [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/16222 ***/
|
|
user_pref("devtools.debugger.remote-enabled", false); // [DEFAULT: false]
|
|
/* 2609: disable MathML (Mathematical Markup Language) [FF51+] [SETUP-HARDEN]
|
|
* [NOTE] Unlike arkenfox/user.js, we explicitly disable it
|
|
* [TEST] https://arkenfox.github.io/TZP/tzp.html#misc
|
|
* [1] https://bugzilla.mozilla.org/1173199 ***/
|
|
user_pref("mathml.disabled", true);
|
|
/* 2610: disable in-content SVG (Scalable Vector Graphics) [FF53+]
|
|
* [NOTE] In FF70+ and ESR68.1.0+ this no longer affects extensions (1564208)
|
|
* [WARNING] Expect breakage incl. youtube player controls. Best left for a "hardened" profile.
|
|
* [1] https://bugzilla.mozilla.org/1216893 ***/
|
|
user_pref("svg.disabled", true);
|
|
/* 2611: disable middle mouse click opening links from clipboard
|
|
* [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/10089 ***/
|
|
user_pref("middlemouse.contentLoadURL", false);
|
|
/* 2614: limit HTTP redirects (this does not control redirects with HTML meta tags or JS)
|
|
* [NOTE] A low setting of 5 or under will probably break some sites (e.g. gmail logins)
|
|
* To control HTML Meta tag and JS redirects, use an extension. Default is 20 ***/
|
|
user_pref("network.http.redirection-limit", 8);
|
|
/* 2619: enforce Punycode for Internationalized Domain Names to eliminate possible spoofing
|
|
* Firefox has *some* protections, but it is better to be safe than sorry
|
|
* [SETUP-WEB] Might be undesirable for non-latin alphabet users since legitimate IDN's are also punycoded
|
|
* [TEST] https://www.xn--80ak6aa92e.com/ (www.apple.com)
|
|
* [1] https://wiki.mozilla.org/IDN_Display_Algorithm
|
|
* [2] https://en.wikipedia.org/wiki/IDN_homograph_attack
|
|
* [3] CVE-2017-5383: https://www.mozilla.org/security/advisories/mfsa2017-02/
|
|
* [4] https://www.xudongz.com/blog/2017/idn-phishing/ ***/
|
|
user_pref("network.IDN_show_punycode", true);
|
|
/* 2622: enforce no system colors; they can be fingerprinted
|
|
* [SETTING] General>Language and Appearance>Fonts and Colors>Colors>Use system colors ***/
|
|
user_pref("browser.display.use_system_colors", false); // [DEFAULT: false]
|
|
|
|
/** DOWNLOADS ***/
|
|
/* 2650: discourage downloading to desktop
|
|
* 0=desktop, 1=downloads (default), 2=last used
|
|
* [SETTING] To set your default "downloads": General>Downloads>Save files to ***/
|
|
// user_pref("browser.download.folderList", 2);
|
|
/* 2651: enforce user interaction for security by always asking where to download
|
|
* [SETUP-CHROME] On Android this blocks longtapping and saving images
|
|
* [SETTING] General>Downloads>Always ask you where to save files ***/
|
|
user_pref("browser.download.useDownloadDir", false);
|
|
/* 2652: disable adding downloads to the system's "recent documents" list ***/
|
|
user_pref("browser.download.manager.addToRecentDocs", false);
|
|
/* 2653: disable hiding mime types (Options>General>Applications) not associated with a plugin ***/
|
|
user_pref("browser.download.hide_plugins_without_extensions", false);
|
|
/* 2654: disable "open with" in download dialog [FF50+] [SETUP-HARDEN]
|
|
* This is very useful to enable when the browser is sandboxed (e.g. via AppArmor)
|
|
* in such a way that it is forbidden to run external applications.
|
|
* [WARNING] This may interfere with some users' workflow or methods
|
|
* [1] https://bugzilla.mozilla.org/1281959 ***/
|
|
// user_pref("browser.download.forbid_open_with", true);
|
|
|
|
/** EXTENSIONS ***/
|
|
/* 2660: lock down allowed extension directories
|
|
* [SETUP-CHROME] This will break extensions, language packs, themes and any other
|
|
* XPI files which are installed outside of profile and application directories
|
|
* [1] https://mike.kaply.com/2012/02/21/understanding-add-on-scopes/
|
|
* [1] archived: https://archive.is/DYjAM ***/
|
|
user_pref("extensions.enabledScopes", 1); // [HIDDEN PREF]
|
|
user_pref("extensions.autoDisableScopes", 15); // [DEFAULT: 15]
|
|
/* 2662: disable webextension restrictions on certain mozilla domains (you also need 4503) [FF60+]
|
|
* [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1384330,1406795,1415644,1453988 ***/
|
|
// user_pref("extensions.webextensions.restrictedDomains", "");
|
|
|
|
/** SECURITY ***/
|
|
/* 2680: enforce CSP (Content Security Policy)
|
|
* [WARNING] CSP is a very important and widespread security feature. Don't disable it!
|
|
* [1] https://developer.mozilla.org/docs/Web/HTTP/CSP ***/
|
|
user_pref("security.csp.enable", true); // [DEFAULT: true]
|
|
/* 2684: enforce a security delay on some confirmation dialogs such as install, open/save
|
|
* [1] https://www.squarefree.com/2004/07/01/race-conditions-in-security-dialogs/ ***/
|
|
user_pref("security.dialog_enable_delay", 700);
|
|
|
|
/*** [SECTION 2700]: PERSISTENT STORAGE
|
|
Data SET by websites including
|
|
cookies : profile\cookies.sqlite
|
|
localStorage : profile\webappsstore.sqlite
|
|
indexedDB : profile\storage\default
|
|
appCache : profile\OfflineCache
|
|
serviceWorkers :
|
|
|
|
[NOTE] indexedDB and serviceWorkers are not available in Private Browsing Mode
|
|
[NOTE] Blocking cookies also blocks websites access to: localStorage (incl. sessionStorage),
|
|
indexedDB, sharedWorker, and serviceWorker (and therefore service worker cache and notifications)
|
|
If you set a site exception for cookies (either "Allow" or "Allow for Session") then they become
|
|
accessible to websites except shared/service workers where the cookie setting *must* be "Allow"
|
|
***/
|
|
user_pref("_user.js.parrot", "2700 syntax error: the parrot's joined the bleedin' choir invisible!");
|
|
/* 2701: disable cookies and site-data [SETUP-WEB]
|
|
* 0=Accept cookies and site data, 1=(Block) All third-party cookies, 2=(Block) All cookies,
|
|
* 3=(Block) Cookies from unvisited websites, 4=(Block) Cross-site and social media trackers (FF63+) (default FF69+)
|
|
* [NOTE] You can set exceptions under site permissions or use an extension
|
|
* [NOTE] Unlike arkenfox/user.js, we block **ALL** cookies on purpose
|
|
* [SETTING] Privacy & Security>Privacy>Web Content>Accept cookies from sites ***/
|
|
user_pref("network.cookie.cookieBehavior", 2);
|
|
/* 2702: set third-party cookies (i.e ALL) (if enabled, see 2701) to session-only
|
|
and (FF58+) set third-party non-secure (i.e HTTP) cookies to session-only
|
|
[NOTE] .sessionOnly overrides .nonsecureSessionOnly except when .sessionOnly=false and
|
|
.nonsecureSessionOnly=true. This allows you to keep HTTPS cookies, but session-only HTTP ones
|
|
* [1] https://feeding.cloud.geek.nz/posts/tweaking-cookies-for-privacy-in-firefox/ ***/
|
|
user_pref("network.cookie.thirdparty.sessionOnly", true);
|
|
user_pref("network.cookie.thirdparty.nonsecureSessionOnly", true); // [FF58+]
|
|
/* 2703: delete cookies and site data on close
|
|
* 0=keep until they expire (default), 2=keep until you close Thunderbird
|
|
* [NOTE] The setting below is disabled (but not changed) if you block all cookies (2701 = 2)
|
|
* [NOTE] Unlike arkenfox/user.js, we keep them until Thunderbird exit on purpose
|
|
* [SETTING] Privacy & Security>Privacy>Web Content>Keep until: "I close Thunderbird" ***/
|
|
user_pref("network.cookie.lifetimePolicy", 2);
|
|
/* 2710: disable DOM (Document Object Model) Storage
|
|
* [WARNING] This will break a LOT of sites' functionality AND extensions!
|
|
* You are better off using an extension for more granular control ***/
|
|
user_pref("dom.storage.enabled", false);
|
|
/* 2730: disable offline cache ***/
|
|
user_pref("browser.cache.offline.enable", false);
|
|
/* 2740: disable service worker cache and cache storage
|
|
* [NOTE] We clear service worker cache on exiting Firefox (see 2803)
|
|
* [NOTE] Unlike arkenfox/user.js, we explicitly disable it
|
|
* [1] https://w3c.github.io/ServiceWorker/#privacy ***/
|
|
user_pref("dom.caches.enabled", false);
|
|
/* 2750: disable Storage API [FF51+]
|
|
* The API gives sites the ability to find out how much space they can use, how much
|
|
* they are already using, and even control whether or not they need to be alerted
|
|
* before the user agent disposes of site data in order to make room for other things.
|
|
* [1] https://developer.mozilla.org/docs/Web/API/StorageManager
|
|
* [2] https://developer.mozilla.org/docs/Web/API/Storage_API
|
|
* [3] https://blog.mozilla.org/l10n/2017/03/07/firefox-l10n-report-aurora-54/ ***/
|
|
user_pref("dom.storageManager.enabled", false);
|
|
/* 2755: disable Storage Access API [FF65+]
|
|
* [1] https://developer.mozilla.org/en-US/docs/Web/API/Storage_Access_API ***/
|
|
// user_pref("dom.storage_access.enabled", false); // [DEFAULT: false]
|
|
|
|
/*** [SECTION 2800]: SHUTDOWN
|
|
You should set the values to what suits you best.
|
|
- "Offline Website Data" includes appCache (2730), localStorage (2710),
|
|
service worker cache (2740), and QuotaManager (IndexedDB (2720), asm-cache)
|
|
- In both 2803 + 2804, the 'download' and 'history' prefs are combined in the
|
|
Firefox interface as "Browsing & Download History" and their values will be synced
|
|
***/
|
|
user_pref("_user.js.parrot", "2800 syntax error: the parrot's bleedin' demised!");
|
|
/* 2802: enable Thunderbird to clear items on shutdown (see 2803) ***/
|
|
user_pref("privacy.sanitize.sanitizeOnShutdown", true);
|
|
/* 2803: set what items to clear on shutdown (if 2802 is true) [SETUP-CHROME]
|
|
* [NOTE] If 'history' is true, downloads will also be cleared regardless of the value
|
|
* but if 'history' is false, downloads can still be cleared independently
|
|
* However, this may not always be the case. The interface combines and syncs these
|
|
* prefs when set from there, and the sanitize code may change at any time ***/
|
|
user_pref("privacy.clearOnShutdown.cache", true);
|
|
user_pref("privacy.clearOnShutdown.cookies", true);
|
|
user_pref("privacy.clearOnShutdown.downloads", true); // see note above
|
|
user_pref("privacy.clearOnShutdown.formdata", true); // Form & Search History
|
|
user_pref("privacy.clearOnShutdown.history", true); // Browsing & Download History
|
|
user_pref("privacy.clearOnShutdown.offlineApps", true); // Offline Website Data
|
|
user_pref("privacy.clearOnShutdown.sessions", true); // Active Logins
|
|
user_pref("privacy.clearOnShutdown.siteSettings", false); // Site Preferences
|
|
/* 2804: reset default items to clear with Ctrl-Shift-Del (to match 2803) [SETUP-CHROME]
|
|
* This dialog can also be accessed from the menu History>Clear Recent History
|
|
* Firefox remembers your last choices. This will reset them when you start Firefox.
|
|
* [NOTE] Regardless of what you set privacy.cpd.downloads to, as soon as the dialog
|
|
* for "Clear Recent History" is opened, it is synced to the same as 'history' ***/
|
|
user_pref("privacy.cpd.cache", true);
|
|
user_pref("privacy.cpd.cookies", true);
|
|
user_pref("privacy.cpd.history", true); // Browsing & Download History
|
|
/* 2806: reset default 'Time range to clear' for 'Clear Recent History' (see 2804)
|
|
* Firefox remembers your last choice. This will reset the value when you start Firefox.
|
|
* 0=everything, 1=last hour, 2=last two hours, 3=last four hours,
|
|
* 4=today, 5=last five minutes, 6=last twenty-four hours
|
|
* [NOTE] The values 5 + 6 are not listed in the dropdown, which will display a
|
|
* blank value if they are used, but they do work as advertised ***/
|
|
user_pref("privacy.sanitize.timeSpan", 0);
|
|
|
|
/*** [SECTION 4000]: FPI (FIRST PARTY ISOLATION)
|
|
** 1278037 - isolate indexedDB (FF51+)
|
|
** 1277803 - isolate favicons (FF52+)
|
|
** 1264562 - isolate OCSP cache (FF52+)
|
|
** 1268726 - isolate Shared Workers (FF52+)
|
|
** 1316283 - isolate SSL session cache (FF52+)
|
|
** 1317927 - isolate media cache (FF53+)
|
|
** 1323644 - isolate HSTS and HPKP (FF54+)
|
|
** 1334690 - isolate HTTP Alternative Services (FF54+)
|
|
** 1334693 - isolate SPDY/HTTP2 (FF55+)
|
|
** 1337893 - isolate DNS cache (FF55+)
|
|
** 1344170 - isolate blob: URI (FF55+)
|
|
** 1300671 - isolate data:, about: URLs (FF55+)
|
|
** 1473247 - isolate IP addresses (FF63+)
|
|
** 1492607 - isolate postMessage with targetOrigin "*" (requires 4002) (FF65+)
|
|
** 1542309 - isolate top-level domain URLs when host is in the public suffix list (FF68+)
|
|
** 1506693 - isolate pdfjs range-based requests (FF68+)
|
|
** 1330467 - isolate site permissions (FF69+)
|
|
** 1534339 - isolate IPv6 (FF73+)
|
|
***/
|
|
user_pref("_user.js.parrot", "4000 syntax error: the parrot's pegged out");
|
|
/* 4001: enable First Party Isolation [FF51+]
|
|
* [SETUP-WEB] May break cross-domain logins and site functionality until perfected
|
|
* [1] https://bugzilla.mozilla.org/1260931 ***/
|
|
user_pref("privacy.firstparty.isolate", true);
|
|
/* 4002: enforce FPI restriction for window.opener [FF54+]
|
|
* [NOTE] Setting this to false may reduce the breakage in 4001
|
|
* [NOTE] Unlike arkenfox/user.js, we explicitly set them
|
|
* FF65+ blocks postMessage with targetOrigin "*" if originAttributes don't match. But
|
|
* to reduce breakage it ignores the 1st-party domain (FPD) originAttribute. (see [2],[3])
|
|
* The 2nd pref removes that limitation and will only allow communication if FPDs also match.
|
|
* [1] https://bugzilla.mozilla.org/1319773#c22
|
|
* [2] https://bugzilla.mozilla.org/1492607
|
|
* [3] https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage ***/
|
|
user_pref("privacy.firstparty.isolate.restrict_opener_access", true); // [DEFAULT: true]
|
|
user_pref("privacy.firstparty.isolate.block_post_message", true); // [HIDDEN PREF ESR]
|
|
|
|
/*** [SECTION 4500]: RFP (RESIST FINGERPRINTING)
|
|
This master switch will be used for a wide range of items, many of which will
|
|
**override** existing prefs from FF55+, often providing a **better** solution
|
|
|
|
IMPORTANT: As existing prefs become redundant, and some of them WILL interfere
|
|
with how RFP works, they will be moved to section 4600 and made inactive
|
|
|
|
** 418986 - limit window.screen & CSS media queries leaking identifiable info (FF41+)
|
|
[NOTE] Info only: To set a size, open a XUL (chrome) page (such as about:config) which is at
|
|
100% zoom, hit Shift+F4 to open the scratchpad, type window.resizeTo(1366,768), hit Ctrl+R to run.
|
|
Test your window size, do some math, resize to allow for all the non inner window elements
|
|
[TEST] https://arkenfox.github.io/TZP/tzp.html#screen
|
|
** 1281949 - spoof screen orientation (FF50+)
|
|
** 1281963 - hide the contents of navigator.plugins and navigator.mimeTypes (FF50+)
|
|
FF53: Fixes GetSupportedNames in nsMimeTypeArray and nsPluginArray (1324044)
|
|
** 1330890 - spoof timezone as UTC 0 (FF55+)
|
|
FF58: Date.toLocaleFormat deprecated (818634)
|
|
FF60: Date.toLocaleDateString and Intl.DateTimeFormat fixed (1409973)
|
|
** 1360039 - spoof navigator.hardwareConcurrency as 2 (see 4601) (FF55+)
|
|
This spoof *shouldn't* affect core chrome/Firefox performance
|
|
** 1217238 - reduce precision of time exposed by javascript (FF55+)
|
|
** 1369303 - spoof/disable performance API (see 2410-deprecated, 4602, 4603) (FF56+)
|
|
** 1333651 & 1383495 & 1396468 - spoof User Agent & Navigator API (see section 4700) (FF56+)
|
|
FF56: Version: rounded down to the nearest multiple of 10
|
|
FF57: Version: match current ESR (1393283, 1418672, 1418162, 1511763)
|
|
FF59: OS: Windows, OSX, Android, or Linux (to reduce breakage) (1404608)
|
|
FF66: OS: HTTP Headers reduced to Windows or Android (1509829)
|
|
FF68: OS: updated to Windows 10, OS 10.14, and Android 8.1 (1511434)
|
|
FF78: OS: updated to OS 10.15 and Android 9.0 (1635011)
|
|
** 1369319 - disable device sensor API (see 4604) (FF56+)
|
|
** 1369357 - disable site specific zoom (see 4605) (FF56+)
|
|
** 1337161 - hide gamepads from content (see 4606) (FF56+)
|
|
** 1372072 - spoof network information API as "unknown" when dom.netinfo.enabled = true (see 4607) (FF56+)
|
|
** 1333641 - reduce fingerprinting in WebSpeech API (see 4608) (FF56+)
|
|
** 1372069 & 1403813 & 1441295 - block geolocation requests (same as denying a site permission) (see 0201 ** 1372069 & 1403813 & 1441295 - block geolocation requests (same as denying a site permission) (see 0201, 0202) (FF56-62)
|
|
** 1369309 - spoof media statistics (see 4610) (FF57+)
|
|
** 1382499 - reduce screen co-ordinate fingerprinting in Touch API (see 4611) (FF57+)
|
|
** 1217290 & 1409677 - enable fingerprinting resistance for WebGL (see 2010-12) (FF57+)
|
|
** 1382545 - reduce fingerprinting in Animation API (FF57+)
|
|
** 1354633 - limit MediaError.message to a whitelist (FF57+)
|
|
** 1382533 - enable fingerprinting resistance for Presentation API (FF57+)
|
|
This blocks exposure of local IP Addresses via mDNS (Multicast DNS)
|
|
** 967895 - spoof canvas and enable site permission prompt before allowing canvas data extraction (FF58+)
|
|
FF59: Added to site permissions panel (1413780) Only prompt when triggered by user input (1376865)
|
|
** 1372073 - spoof/block fingerprinting in MediaDevices API (FF59+)
|
|
Spoof: enumerate devices reports one "Internal Camera" and one "Internal Microphone" if
|
|
media.navigator.enabled is true (see 2505 which we chose to keep disabled)
|
|
Block: suppresses the ondevicechange event (see 4612)
|
|
** 1039069 - warn when language prefs are set to non en-US (see 0210, 0211) (FF59+)
|
|
** 1222285 & 1433592 - spoof keyboard events and suppress keyboard modifier events (FF59+)
|
|
Spoofing mimics the content language of the document. Currently it only supports en-US.
|
|
Modifier events suppressed are SHIFT and both ALT keys. Chrome is not affected.
|
|
FF60: Fix keydown/keyup events (1438795)
|
|
** 1337157 - disable WebGL debug renderer info (see 4613) (FF60+)
|
|
** 1459089 - disable OS locale in HTTP Accept-Language headers (ANDROID) (FF62+)
|
|
** 1479239 - return "no-preference" with prefers-reduced-motion (see 4617) (FF63+)
|
|
** 1363508 - spoof/suppress Pointer Events (see 4614) (FF64+)
|
|
FF65: pointerEvent.pointerid (1492766)
|
|
** 1485266 - disable exposure of system colors to CSS or canvas (see 4615) (FF67+)
|
|
** 1407366 - enable inner window letterboxing (see 4504) (FF67+)
|
|
** 1494034 - return "light" with prefers-color-scheme (see 4616) (FF67+)
|
|
[1] https://developer.mozilla.org/en-US/docs/Web/CSS/@media/prefers-color-scheme
|
|
** 1564422 - spoof audioContext outputLatency (FF70+)
|
|
** 1595823 - spoof audioContext sampleRate (FF72+)
|
|
** 1607316 - spoof pointer as coarse and hover as none (ANDROID) (FF74+)
|
|
** 1621433 - randomize canvas (previously FF58+ returned an all-white canvas) (FF78+)
|
|
***/
|
|
user_pref("_user.js.parrot", "4500 syntax error: the parrot's popped 'is clogs");
|
|
/* 4501: enable privacy.resistFingerprinting [FF41+]
|
|
* This pref is the master switch for all other privacy.resist* prefs unless stated
|
|
* [SETUP-WEB] RFP can cause the odd website to break in strange ways, and has a few side affects,
|
|
* but is largely robust nowadays. Give it a try. Your choice. Also see 4504 (letterboxing).
|
|
* [NOTE] This feature currently breaks Text & Background colors settings ("Fonts & Colors"), see [2].
|
|
* [1] https://bugzilla.mozilla.org/418986
|
|
* [2] https://bugzilla.mozilla.org/1600074 ***/
|
|
user_pref("privacy.resistFingerprinting", true);
|
|
/* 4502: set new window sizes to round to hundreds [FF55+] [SETUP-CHROME]
|
|
* Width will round down to multiples of 200s and height to 100s, to fit your screen.
|
|
* The override values are a starting point to round from if you want some control
|
|
* [1] https://bugzilla.mozilla.org/1330882
|
|
* [2] https://hardware.metrics.mozilla.com/ ***/
|
|
// user_pref("privacy.window.maxInnerWidth", 1000);
|
|
// user_pref("privacy.window.maxInnerHeight", 1000);
|
|
/* 4503: disable mozAddonManager Web API [FF57+]
|
|
* [NOTE] As a side-effect in FF57-59 this allowed extensions to work on AMO. In FF60+ you also need
|
|
* to sanitize or clear extensions.webextensions.restrictedDomains (see 2662) to keep that side-effect
|
|
* [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1384330,1406795,1415644,1453988 ***/
|
|
user_pref("privacy.resistFingerprinting.block_mozAddonManager", true); // [HIDDEN PREF]
|
|
/* 4520: disable chrome animations [FF77+] [RESTART]
|
|
* [NOTE] pref added in FF63, but applied to chrome in FF77. RFP spoofs this for web content ***/
|
|
user_pref("ui.prefersReducedMotion", 1); // [HIDDEN PREF]
|
|
|
|
/*** [SECTION 4600]: RFP ALTERNATIVES
|
|
* non-RFP users:
|
|
Enable the whole section (see the SETUP tag below)
|
|
* RFP users:
|
|
Make sure these are reset in about:config. They are redundant. In fact, some
|
|
even cause RFP to not behave as you would expect and alter your fingerprint
|
|
* ESR RFP users:
|
|
Reset those *up to and including* your version. Add those *after* your version
|
|
as active prefs in your overrides. This is assuming that the patch wasn't also
|
|
backported to Firefox ESR. Backporting RFP patches to ESR is rare.
|
|
***/
|
|
user_pref("_user.js.parrot", "4600 syntax error: the parrot's crossed the Jordan");
|
|
/* [SETUP-non-RFP] Non-RFP users replace the * with a slash on this line to enable these
|
|
// FF55+
|
|
// 4601: [2514] spoof (or limit?) number of CPU cores [FF48+]
|
|
// [NOTE] *may* affect core chrome/Firefox performance, will affect content.
|
|
// [1] https://bugzilla.mozilla.org/1008453
|
|
// [2] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/21675
|
|
// [3] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/22127
|
|
// [4] https://html.spec.whatwg.org/multipage/workers.html#navigator.hardwareconcurrency
|
|
// user_pref("dom.maxHardwareConcurrency", 2);
|
|
// * * * /
|
|
// FF56+
|
|
// 4602: [2411] disable resource/navigation timing
|
|
user_pref("dom.enable_resource_timing", false);
|
|
// 4603: [2412] disable timing attacks
|
|
// [1] https://wiki.mozilla.org/Security/Reviews/Firefox/NavigationTimingAPI
|
|
user_pref("dom.enable_performance", false);
|
|
// 4604: [2512] disable device sensor API
|
|
// Optional protection depending on your device
|
|
// [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/15758
|
|
// [2] https://blog.lukaszolejnik.com/stealing-sensitive-browser-data-with-the-w3c-ambient-light-sensor-api/
|
|
// [3] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1357733,1292751
|
|
// user_pref("device.sensors.enabled", false);
|
|
// 4606: [2501] disable gamepad API - USB device ID enumeration
|
|
// Optional protection depending on your connected devices
|
|
// [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/13023
|
|
// user_pref("dom.gamepad.enabled", false);
|
|
// 4607: [2503] disable giving away network info [FF31+]
|
|
// e.g. bluetooth, cellular, ethernet, wifi, wimax, other, mixed, unknown, none
|
|
// [1] https://developer.mozilla.org/docs/Web/API/Network_Information_API
|
|
// [2] https://wicg.github.io/netinfo/
|
|
// [3] https://bugzilla.mozilla.org/960426
|
|
user_pref("dom.netinfo.enabled", false); // [DEFAULT: true on Android]
|
|
// 4608: [2021] disable the SpeechSynthesis (Text-to-Speech) part of the Web Speech API
|
|
// [1] https://developer.mozilla.org/docs/Web/API/Web_Speech_API
|
|
// [2] https://developer.mozilla.org/docs/Web/API/SpeechSynthesis
|
|
// [3] https://wiki.mozilla.org/HTML5_Speech_API
|
|
user_pref("media.webspeech.synth.enabled", false);
|
|
// * * * /
|
|
// FF57+
|
|
// 4610: [2506] disable video statistics - JS performance fingerprinting [FF25+]
|
|
// [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/15757
|
|
// [2] https://bugzilla.mozilla.org/654550
|
|
user_pref("media.video_stats.enabled", false);
|
|
// 4611: [2509] disable touch events
|
|
// fingerprinting attack vector - leaks screen res & actual screen coordinates
|
|
// 0=disabled, 1=enabled, 2=autodetect
|
|
// Optional protection depending on your device
|
|
// [1] https://developer.mozilla.org/docs/Web/API/Touch_events
|
|
// [2] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/10286
|
|
// user_pref("dom.w3c_touch_events.enabled", 0);
|
|
// * * * /
|
|
// FF59+
|
|
// 4612: [2511] disable MediaDevices change detection [FF51+]
|
|
// [1] https://developer.mozilla.org/docs/Web/Events/devicechange
|
|
// [2] https://developer.mozilla.org/docs/Web/API/MediaDevices/ondevicechange
|
|
user_pref("media.ondevicechange.enabled", false);
|
|
// * * * /
|
|
// FF60+
|
|
// 4613: [2011] disable WebGL debug info being available to websites
|
|
// [1] https://bugzilla.mozilla.org/1171228
|
|
// [2] https://developer.mozilla.org/docs/Web/API/WEBGL_debug_renderer_info
|
|
user_pref("webgl.enable-debug-renderer-info", false);
|
|
// * * * /
|
|
// FF65+
|
|
// 4614: [2516] disable PointerEvents
|
|
// [1] https://developer.mozilla.org/en-US/docs/Web/API/PointerEvent
|
|
user_pref("dom.w3c_pointer_events.enabled", false);
|
|
// * * * /
|
|
// FF67+
|
|
// 4615: [2618] disable exposure of system colors to CSS or canvas [FF44+]
|
|
// [NOTE] See second listed bug: may cause black on black for elements with undefined colors
|
|
// [SETUP-CHROME] Might affect CSS in themes and extensions
|
|
// [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=232227,133087
|
|
user_pref("ui.use_standins_for_native_colors", true);
|
|
// 4616: enforce prefers-color-scheme as light [FF67+]
|
|
// 0=light, 1=dark : This overrides your OS value
|
|
user_pref("ui.systemUsesDarkTheme", 0); // [HIDDEN PREF]
|
|
// 4617: enforce prefers-reduced-motion as no-preference [FF63+] [RESTART]
|
|
// 0=no-preference, 1=reduce
|
|
user_pref("ui.prefersReducedMotion", 0); // [HIDDEN PREF]
|
|
// * * * /
|
|
// FF41+
|
|
// 4620: mitigate fingerprinting via canvas
|
|
// [NOTE] This setting has been removed from gHacks v67 (see [1]) but is still enabled by default.
|
|
// [1] https://github.com/arkenfox/user.js/commit/8b07fd57d0f8a31dab25661d51235fe1b0c6360c
|
|
user_pref("canvas.capturestream.enabled", false);
|
|
// * * * /
|
|
// ***/
|
|
|
|
/*** [SECTION 4700]: RFP ALTERNATIVES (NAVIGATOR / USER AGENT (UA) SPOOFING)
|
|
This is FYI ONLY. These prefs are INSUFFICIENT(a) on their own, you need
|
|
to use RFP (4500) or an extension, in which case they become POINTLESS.
|
|
(a) Many of the components that make up your UA can be derived by other means.
|
|
And when those values differ, you provide more bits and raise entropy.
|
|
Examples of leaks include workers, navigator objects, date locale/formats,
|
|
iframes, headers, tcp/ip attributes, feature detection, and **many** more.
|
|
ALL values below intentionally left blank - use RFP, or get a vetted, tested
|
|
extension and mimic RFP values to *lower* entropy, or randomize to *raise* it
|
|
***/
|
|
user_pref("_user.js.parrot", "4700 syntax error: the parrot's taken 'is last bow");
|
|
/* 4701: navigator.userAgent ***/
|
|
// user_pref("general.useragent.override", ""); // [HIDDEN PREF]
|
|
/* 4702: navigator.buildID
|
|
* Revealed build time down to the second. In FF64+ it now returns a fixed timestamp
|
|
* [1] https://bugzilla.mozilla.org/583181
|
|
* [2] https://www.fxsitecompat.com/en-CA/docs/2018/navigator-buildid-now-returns-a-fixed-timestamp/ ***/
|
|
// user_pref("general.buildID.override", ""); // [HIDDEN PREF]
|
|
/* 4703: navigator.appName ***/
|
|
// user_pref("general.appname.override", ""); // [HIDDEN PREF]
|
|
/* 4704: navigator.appVersion ***/
|
|
// user_pref("general.appversion.override", ""); // [HIDDEN PREF]
|
|
/* 4705: navigator.platform ***/
|
|
// user_pref("general.platform.override", ""); // [HIDDEN PREF]
|
|
/* 4706: navigator.oscpu ***/
|
|
// user_pref("general.oscpu.override", ""); // [HIDDEN PREF]
|
|
/* 4707: Limit user-agent data by imitating Firefox's user-agent */
|
|
// user_pref("general.useragent.compatMode.firefox", true);
|
|
|
|
/*** [SECTION 5000]: PERSONAL
|
|
Non-project related but useful. If any of these interest you, add them to your overrides ***/
|
|
user_pref("_user.js.parrot", "5000 syntax error: this is an ex-parrot!");
|
|
/* WELCOME & WHAT's NEW NOTICES ***/
|
|
//user_pref("mailnews.start_page_override.mstone", "ignore"); // master switch
|
|
/* WARNINGS ***/
|
|
// user_pref("full-screen-api.warning.delay", 0);
|
|
// user_pref("full-screen-api.warning.timeout", 0);
|
|
/* APPEARANCE ***/
|
|
// user_pref("toolkit.legacyUserProfileCustomizations.stylesheets", true); // [FF68+] allow userChrome/userContent
|
|
/* CONTENT BEHAVIOR ***/
|
|
// user_pref("accessibility.typeaheadfind", true); // enable "Find As You Type"
|
|
// user_pref("clipboard.autocopy", false); // disable autocopy default [LINUX]
|
|
/* RETURN RECEIPT BEHAVIOR ***/
|
|
// user_pref("mail.mdn.report.enabled", false); // disable return receipt sending unconditionally
|
|
/* UX BEHAVIOR ***/
|
|
// user_pref("general.autoScroll", false); // middle-click enabling auto-scrolling [DEFAULT: false on Linux]
|
|
// user_pref("ui.key.menuAccessKey", 0); // disable alt key toggling the menu bar [RESTART]
|
|
/* OTHER ***/
|
|
// user_pref("network.manage-offline-status", false); // see bugzilla 620472
|
|
// user_pref("xpinstall.signatures.required", false); // enforced extension signing (Nightly/ESR)
|
|
/* Set custom headers ***/
|
|
// user_pref("mail.identity.id1.headers", "References, InReplyTo");
|
|
// user_pref("mail.identity.id1.header.References", "References: <2ad46d80-c8ce-49a3-9896-16171788ac28@example.tld>\n <31ff00c2-b7cb-4063-beeb-a0bdd424c3a7@example1.tld>");
|
|
// user_pref("mail.identity.id1.header.InReplyTo", "In-Reply-To: <31ff00c2-b7cb-4063-beeb-a0bdd424c3a7@example1.tld>");
|
|
user_pref("mail.identity.id1.headers", "");
|
|
user_pref("mail.identity.id1.header.References", "");
|
|
user_pref("mail.identity.id1.header.InReplyTo", "");
|
|
|
|
/*** [SECTION 6000]: THUNDERBIRD (AUTO CONFIG / UI / HEADERS / ADDRESS BOOK)
|
|
Options general to Thunderbird's mail configuration and user interface
|
|
|
|
[1] https://searchfox.org/comm-esr78/source/
|
|
[2] http://kb.mozillazine.org/Mail_and_news_settings
|
|
***/
|
|
user_pref("_user.js.parrot", "6000 syntax error: this parrot is blind!");
|
|
|
|
/** AUTO CONFIG ***/
|
|
/* 6001: Disable auto-configuration [SETUP-INSTALL]
|
|
* These options disable auto-configuration of mail servers in Thunderbird.
|
|
* Such settings require a query to Mozilla which could have privacy implications
|
|
* if the user wishes to keep the existence of the mail provider private.
|
|
* [1] https://developer.mozilla.org/en-US/docs/Mozilla/Thunderbird/Autoconfiguration ***/
|
|
user_pref("mailnews.auto_config.guess.enabled", false);
|
|
user_pref("mailnews.auto_config.fetchFromISP.enabled", false);
|
|
user_pref("mailnews.auto_config.fetchFromISP.sendEmailAddress", false);
|
|
user_pref("mailnews.auto_config.fetchFromExchange.enabled", false);
|
|
user_pref("mailnews.auto_config_url", "");
|
|
user_pref("mailnews.auto_config.addons_url","");
|
|
/* 6002: Disable account provisioning [SETUP-INSTALL]
|
|
* This option allows users to create a new email account through partner providers.
|
|
* [1] https://developer.mozilla.org/en-US/docs/Mozilla/Thunderbird/Account_Provisioner ***/
|
|
user_pref("mail.provider.enabled", false);
|
|
|
|
/** UI (User Interface) ***/
|
|
/* 6010: Hide tab bar
|
|
* false=Hides the tab bar if there is only one tab. (default) ***/
|
|
user_pref("mail.tabs.autoHide", true);
|
|
/* 6011: Show full email instead of just name from address book
|
|
* true=Show just the display name for people in the address book (default)
|
|
* false=Show both the email address and display name. ***/
|
|
user_pref("mail.showCondensedAddresses", false);
|
|
/* 6012: Disable "Filelink for Large Attachments" feature
|
|
* [1] https://support.thunderbird.net/kb/filelink-large-attachments ***/
|
|
user_pref("mail.cloud_files.enabled", false);
|
|
user_pref("mail.cloud_files.inserted_urls.footer.link", "");
|
|
/* 6013: Don't hide cookies and passwords related (advanced?) buttons ***/
|
|
user_pref("pref.privacy.disable_button.view_cookies", false);
|
|
user_pref("pref.privacy.disable_button.cookie_exceptions", false);
|
|
user_pref("pref.privacy.disable_button.view_passwords", false);
|
|
/* 6014: Prevent access to emails until the master password is entered
|
|
* If a master password has been set, Thunderbird will prevent access to locally available emails
|
|
* until the secret is provided.
|
|
* This preference MAY mitigate risk due to intimate relationship threat in some cases (see [2])...
|
|
* [WARNING] This DOES NOT encrypt locally cached emails anyhow (poor man's application security)
|
|
* [1] https://support.mozilla.org/en-US/kb/protect-your-thunderbird-passwords-master-password
|
|
* [2] https://www.schneier.com/wp-content/uploads/2020/06/Privacy_Threats_in_Intimate_Relationships-1.pdf ***/
|
|
user_pref("mail.password_protect_local_cache", true); // [HIDDEN PREF]
|
|
|
|
/** HEADERS ***/
|
|
/* 6020:
|
|
* true=Show Sender header in message pane.
|
|
* false=Does nothing. (default) ***/
|
|
user_pref("mailnews.headers.showSender", true);
|
|
/* 6021:
|
|
* true=Show User Agent header in message pane
|
|
* false=Does nothing. (default) ***/
|
|
user_pref("mailnews.headers.showUserAgent", false);
|
|
/* 6022: Hello argument
|
|
* Lets you replace your IP address with the specified string in Received: headers when your
|
|
* IP address is not a "fully qualified domain name" (FQDN). Typically you only need to do this
|
|
* when you have a NAT box to prevent it from using the NAT boxes IP address.
|
|
* If you don't set it to something in your SMTP server's domain it may increase your spam
|
|
* score. ***/
|
|
user_pref("mail.smtpserver.default.hello_argument", "[127.0.0.1]");
|
|
/* 6023: Displayed dates and times
|
|
* [SETUP-INSTALL] When your e-mail program displays the e-mail's date and time, it normally
|
|
* converts them to your time zone. If your computer's time zone settings are wrong, then you will
|
|
* see the wrong time (and possibly the wrong date).
|
|
* To turn this conversion off, you can use a preference setting.
|
|
* It affects the headers that you see in e-mails that you open or preview, but it does not affect
|
|
* the Date column in folders.
|
|
* [1] http://kb.mozillazine.org/Time_and_time_zone_settings
|
|
* [2] http://wiki.cacert.org/ThunderBirdAdvancedConfig
|
|
* ***/
|
|
user_pref("mailnews.display.original_date", false);
|
|
/* 6024: Display the sender's Timezone when set to true ***/
|
|
user_pref("mailnews.display.date_senders_timezone", false);
|
|
/* 6025: Display Time Date based on Received Header
|
|
* Thunderbird shows the time when the message was sent, according to the sender. It is possible
|
|
* to make Thunderbird show the time when the message arrived on your mail server, based on the
|
|
* "Received" header. Set the following preference. New messages will show the time the message
|
|
* was received, rather than when it was sent. ***/
|
|
// user_pref("mailnews.use_received_date", true);
|
|
|
|
/** ADDRESS BOOK ***/
|
|
/* 6030: Address book collection [SETUP-FEATURE]
|
|
* Disable Thunderbird internal address book email collection
|
|
* Consider using CardBook extension instead (https://addons.thunderbird.net/addon/cardbook/)
|
|
* [SETTING] Preferences>Composition>Addressing>Automatically add outgoing e-mail addresses...
|
|
* [SETTING][CARDBOOK] CardBook>Preferences>Email>Collect Outgoing Email ***/
|
|
user_pref("mail.collect_addressbook", ""); // [DEFAULT: "jsaddrbook://history.sqlite"]
|
|
user_pref("mail.collect_email_address_outgoing", false);
|
|
/* 6031: Only use email addresses, without their Display Names [CARDBOOK] [SETUP-FEATURE]
|
|
* By default, CardBook extension incorporates contacts display names in addresses fields.
|
|
* This could leak sensitive information to all recipients.
|
|
* [SETTING][CARDBOOK] CardBook>Preferences>Email>Sending Emails>Only use email addresses... ***/
|
|
user_pref("extensions.cardbook.useOnlyEmail", true);
|
|
|
|
/*** [SECTION 6100]: EMAIL COMPOSITION (ENCODING / FORMAT / VIEW)
|
|
Options that relate to composition, formatting and viewing email
|
|
***/
|
|
user_pref("_user.js.parrot", "6100 syntax error: this parrot has got no mail!");
|
|
|
|
/** ENCODING ***/
|
|
/* 6101: Prevent fallback encoding to windows-1252, prefer 7bit or 8bit UTF-8
|
|
* [1] http://forums.mozillazine.org/viewtopic.php?f=28&t=267341
|
|
* [2] https://bugzilla.mozilla.org/show_bug.cgi?id=214729
|
|
* [3] https://stackoverflow.com/a/28531705 ***/
|
|
user_pref("intl.fallbackCharsetList.ISO-8859-1", "UTF-8");
|
|
/* 6102: Set encoding of incoming mail
|
|
* [SETTING] Display > Advanced > Fonts & Encodings > Incoming Mail ***/
|
|
user_pref("mailnews.view_default_charset", "UTF-8");
|
|
/* 6103: Set encoding of outgoing mail
|
|
* [SETTING] Display > Advanced > Fonts & Encodings > Outgoing Mail ***/
|
|
user_pref("mailnews.send_default_charset", "UTF-8");
|
|
/* 6104: Forces encoding in reply to be the default charset
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=234958#c2 ***/
|
|
user_pref("mailnews.reply_in_default_charset", true);
|
|
/* 6105: Avoid information leakage in reply header
|
|
* Reply header may contain sensitive information about system locale (date and/or language)
|
|
* 0=no header
|
|
* 1="<author> wrote:" (see `reply_header_authorwrotesingle` below)
|
|
* 2="On <date> <author> wrote:" (see `reply_header_ondateauthorwrote` below [DEFAULT])
|
|
* 3="<author> wrote On <date>:" (see `reply_header_authorwroteondate` below`)
|
|
* 4=user specified (you may use below tokens to forge your own format [DISCOURAGED]) ***/
|
|
user_pref("mailnews.reply_header_type", 1);
|
|
user_pref("mailnews.reply_header_authorwrotesingle", "#1 wrote:");
|
|
// user_pref("mailnews.reply_header_ondateauthorwrote", "On #2 #3, #1 wrote:");
|
|
// user_pref("mailnews.reply_header_authorwroteondate", "#1 wrote on #2 #3:");
|
|
|
|
/** COMPOSITION ***/
|
|
/* 6110: Check spelling before sending [SETUP-FEATURE]
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=667133 ***/
|
|
user_pref("mail.SpellCheckBeforeSend", false);
|
|
/* 6111: Behavior when sending HTML message [SETUP-FEATURE]
|
|
* (0=Ask, 1=Send as plain text, 2=Send as HTML anyway,
|
|
* 3=Include both plain text and HTML message bodies in message)
|
|
* Email that is HTML should also have plaintext multipart for plain text users.
|
|
* [1] https://drewdevault.com/2016/04/11/Please-use-text-plain-for-emails.html
|
|
* [SETTING] Edit > Preferences > Send Options > Send the message in both plain text and HTML ***/
|
|
user_pref("mail.default_html_action", 1);
|
|
/* 6112: Send email in plaintext unless expressly overridden.
|
|
* [SETUP-FEATURE] Sometimes HTML is useful especially when used with Markdown Here
|
|
* [NOTE] Holding down shift when you click on "Write" will bypass
|
|
* [1] http://kb.mozillazine.org/Plain_text_e-mail_%28Thunderbird%29
|
|
* [2] https://support.mozilla.org/en-US/questions/1004181
|
|
* [3] https://markdown-here.com ***/
|
|
user_pref("mail.html_compose", false);
|
|
user_pref("mail.identity.default.compose_html", false);
|
|
/* 6113: Downgrade email to plaintext by default
|
|
* [SETUP-FEATURE] Only use HTML email if you need it, see above
|
|
* [SETTING] Edit > Preferences > Composition > Send Options > Send messages as plain-text if possible ***/
|
|
user_pref("mailnews.sendformat.auto_downgrade", false);
|
|
/* 6114: What classes can process incoming data.
|
|
* (0=All classes (default), 1=Don't display HTML, 2=Don't display HTML and inline images,
|
|
* 3=Don't display HTML, inline images and some other uncommon types, 100=Use a hard coded list)
|
|
* In the past this has mitigated a vulnerability CVE-2008-0304 (rare)
|
|
* [1] https://www.mozilla.org/en-US/security/advisories/mfsa2008-12/
|
|
* [2] https://bugzilla.mozilla.org/show_bug.cgi?id=677905 ***/
|
|
user_pref("mailnews.display.disallow_mime_handlers", 3);
|
|
/* 6115: How to display HTML parts of a message body
|
|
* (0=Display the HTML normally (default), 1=Convert it to text and then back again
|
|
* 2=Display the HTML source, 3=Sanitize the HTML, 4=Display all body parts)
|
|
* (in trunk builds later than 2011-07-23)
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=602718
|
|
* [2] https://hg.mozilla.org/comm-central/rev/c1ef44a22eb2
|
|
* [3] https://www.bucksch.org/1/projects/mozilla/108153/ ***/
|
|
user_pref("mailnews.display.html_as", 3);
|
|
/* 6116: Prefer to view as plaintext or html [SETUP-FEATURE]
|
|
* true=Display a message as plain text when there is both a HTML and a plain
|
|
* text version of a message body
|
|
* false=Display a message as HTML when there is both a HTML and a plain text
|
|
* version of a message body. (default) ***/
|
|
user_pref("mailnews.display.prefer_plaintext", false);
|
|
/* 6117: Inline attachments [SETUP-FEATURE]
|
|
* true=Show inlinable attachments (text, images, messages) after the message.
|
|
* false=Do not display any attachments with the message ***/
|
|
user_pref("mail.inline_attachments", false);
|
|
/* 6118: Big attachment warning
|
|
* [1] https://support.mozilla.org/en-US/questions/1081046
|
|
* [2] http://forums.mozillazine.org/viewtopic.php?f=39&t=2949521 */
|
|
user_pref("mail.compose.big_attachments.notify", true); // [DEFAULT: true]
|
|
/* 6119: Set big attachment size to warn at */
|
|
// user_pref("mailnews.message_warning_size", 20971520); // [DEFAULT: 20971520]
|
|
|
|
/** VIEW ***/
|
|
/* 6130: Disable JavaScript
|
|
* [NOTE] JavaScript is already disabled in message content.
|
|
* [1] https://developer.mozilla.org/en-US/docs/Mozilla/Thunderbird/Releases/3
|
|
* [2] https://stackoverflow.com/questions/3054315/is-javascript-supported-in-an-email-message
|
|
* ***/
|
|
user_pref("javascript.enabled", false);
|
|
/* 6131: Disable media source extensions
|
|
* [1] https://www.ghacks.net/2014/05/10/enable-media-source-extensions-firefox ***/
|
|
user_pref("media.mediasource.enabled", false);
|
|
/* 6132: Disable hardware decoding support ***/
|
|
user_pref("media.hardware-video-decoding.enabled", false);
|
|
/* 6133: Default image permissions
|
|
* 1=Allow all images to load, regardless of origin. (Default),
|
|
* 2=Block all images from loading.
|
|
* 3=Prevent third-party images from loading
|
|
* [1] http://kb.mozillazine.org/Permissions.default.image ***/
|
|
user_pref("permissions.default.image", 2);
|
|
|
|
/*** [SECTION 6200]: OTHER THUNDERBIRD COMPONENTS (CHAT / CALENDAR / RSS)
|
|
Options that relate to other Thunderbird components such as the chat client, calendar and RSS)
|
|
***/
|
|
user_pref("_user.js.parrot", "6200 syntax error: this parrot is not tweeting!");
|
|
|
|
/** CHAT ***/
|
|
/* 6201: Disable chat functionality [SETUP-FEATURE] ***/
|
|
user_pref("mail.chat.enabled", false);
|
|
/* 6202: Disable logging of group chats ***/
|
|
user_pref("purple.logging.log_chats", false);
|
|
/* 6203: Disable logging of 1 to 1 conversations ***/
|
|
user_pref("purple.logging.log_ims", false);
|
|
/* 6204: Disable logging of system messages ***/
|
|
user_pref("purple.logging.log_system", false);
|
|
/* 6205: Disable typing notifications ***/
|
|
user_pref("purple.conversations.im.send_typing", false);
|
|
/* 6206: When chat is enabled, do not connect to accounts automatically
|
|
* 0=Do not connect / show the account manager,
|
|
* 1=Connect automatically. (Default) ***/
|
|
// user_pref("messenger.startup.action", 0);
|
|
/* 6207: When chat is enabled, do not report idle status ***/
|
|
// user_pref("messenger.status.reportIdle", false);
|
|
|
|
/** CALENDAR ***/
|
|
/* 6210: Disable calendar integration
|
|
* [SETUP-FEATURE] Lightning calendar add-on is integrated in Thunderbird 38 and later.
|
|
* Keeping this preference false allows us to properly show the opt-in/opt-out dialog
|
|
* on new profiles fresh start, see [3].
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=401779
|
|
* [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1130854
|
|
* [3] https://bugzilla.mozilla.org/show_bug.cgi?id=1130852 ***/
|
|
user_pref("mail.calendar-integration.opt-out", false);
|
|
/* 6211: Set user agent for calendar ***/
|
|
user_pref("calendar.useragent.extra", "");
|
|
/* 6212: Set calendar timezone to avoid system detection [SETUP-INSTALL]
|
|
* By default, extensive system detection would be performed to find user's current timezone.
|
|
* Setting this preference to "UTC" should disable it.
|
|
* You may also directly set it to your timezone, i.e. "Pacific/Fakaofo"
|
|
* [SETTING] Edit>Preferences>Calendar>Calendar>Timezone ***/
|
|
user_pref("calendar.timezone.local", "UTC"); // [DEFAULT: ""]
|
|
|
|
/** RSS ***/
|
|
/** These features don't actually do anything as they aren't implemented
|
|
* [1] https://searchfox.org/comm-esr78/rev/384830b0570096c48770398060f87fbe556f6f01/mail/base/content/mailWindowOverlay.js#925
|
|
* [2] https://bugzilla.mozilla.org/show_bug.cgi?id=458606#c9
|
|
/* 6220: What classes can process incoming data.
|
|
* (0=All classes (default), 1=Don't display HTML, 2=Don't display HTML and inline images,
|
|
* 3=Don't display HTML, inline images and some other uncommon types, 100=Use a hard coded list)
|
|
* [1] https://www.privacy-handbuch.de/handbuch_31j.htm
|
|
user_pref("rss.display.disallow_mime_handlers", 3);
|
|
/* 6221: How to display HTML parts of a message body
|
|
* (0=Display the HTML normally (default), 1=Convert it to text and then back again
|
|
* 2=Display the HTML source, 3=Sanitize the HTML, 4=Display all body parts)
|
|
* (in trunk builds later than 2011-07-23)
|
|
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=602718
|
|
* [2] https://hg.mozilla.org/comm-central/rev/c1ef44a22eb2
|
|
* [3] https://www.bucksch.org/1/projects/mozilla/108153/
|
|
user_pref("rss.display.html_as", 1);
|
|
/* 6222: Prefer to view as plaintext or html
|
|
* true=Display a message as plain text when there is both a HTML and a plain
|
|
* text version of a message body
|
|
* false=Display a message as HTML when there is both a HTML and a plain text
|
|
* version of a message body. (default)
|
|
user_pref("rss.display.prefer_plaintext", true);
|
|
**/
|
|
/* 6223: Feed message display (summary or web page), on open.
|
|
* Action on double click or enter in threadpane for a feed message.
|
|
* 0=open content-base url in new window, 1=open summary in new window,
|
|
* 2=toggle load summary and content-base url in message pane,
|
|
* 3=load content-base url in browser
|
|
* [1] http://forums.mozillazine.org/viewtopic.php?f=39&t=2502335 ***/
|
|
user_pref("rss.show.content-base", 3);
|
|
/* 6224: Feed message display (summary or web page), on select.
|
|
* 0=global override, load web page, 1=global override, load summary,
|
|
* 2=use default feed folder setting from Subscribe dialog; if no setting default to 1 ***/
|
|
user_pref("rss.show.summary", 1);
|
|
/* 6225: Feed message additional web page display.
|
|
* 0=no action, 1=load web page in default browser, on select ***/
|
|
user_pref("rss.message.loadWebPageOnSelect", 0);
|
|
|
|
/*** [SECTION 6300]: THUNDERBIRD ENCRYPTION (ENIGMAIL / AUTOCRYPT / GNUPG)
|
|
Options that relate to Enigmail addon and AutoCrypt.
|
|
GnuPG (and RNP) specific options should also land there.
|
|
[1] https://autocrypt.org
|
|
[2] https://www.enigmail.net/index.php/en/user-manual/advanced-operations
|
|
[3] https://wiki.mozilla.org/Thunderbird:OpenPGP
|
|
***/
|
|
user_pref("_user.js.parrot", "6300 syntax error: this parrot is talking in codes!");
|
|
|
|
/** ENIGMAIL ***/
|
|
/* These used to be inversed, however it seems upstream has changed this behavior
|
|
* [1] https://www.privacy-handbuch.de/handbuch_31f.htm ***/
|
|
/* 6301: Silence the Enigmail version header ***/
|
|
user_pref("extensions.enigmail.addHeaders", false); // [DEFAULT: false]
|
|
/* 6302: Silence the Enigmail comment ***/
|
|
user_pref("extensions.enigmail.useDefaultComment", true); // [DEFAULT: true]
|
|
/* 6303: Silence the version ***/
|
|
user_pref("extensions.enigmail.agentAdditionalParam", "--no-emit-version --no-comments");
|
|
/* 6304: Specifies the hash algorithm used by GnuPG for its cryptographic operations:
|
|
* 0=automatic selection, let GnuPG choose (default, recommended), 1=SHA1, 2=RIPEMD160
|
|
* 3=SHA256, 4=SHA384, 5=SHA512
|
|
* [NOTE] You should probably have a decent gpg.conf with things set. Examples
|
|
* [1] https://github.com/Whonix/anon-gpg-tweaks/blob/master/etc/skel/.gnupg/gpg.conf
|
|
* [2] https://github.com/ioerror/torbirdy/blob/master/gpg.conf
|
|
* ***/
|
|
user_pref("extensions.enigmail.mimeHashAlgorithm", 5);
|
|
/* 6305: Protect subject line
|
|
* 0=Leave subject unprotected,
|
|
* 1=Show dialog with "Leave subject unprotected" (changes value to 0)
|
|
* or "Protect subject" (changes value to 2,
|
|
* 2=Protect subject***/
|
|
user_pref("extensions.enigmail.protectedHeaders", 2);
|
|
/* 6306: Text to use as replacement for the subject, following the Memory Hole
|
|
* standard. If nothing is defined, then "Encrypted Message" is used.
|
|
***/
|
|
user_pref("extensions.enigmail.protectedSubjectText", "Encrypted Message"); // [DEFAULT: "Encrypted Message"]
|
|
|
|
/** AUTOCRYPT ***/
|
|
/* 6307: Choose whether to enable AutoCrypt
|
|
* [1] https://autocrypt.org/level1.html
|
|
* [2] https://redmine.tails.boum.org/code/issues/16186
|
|
* [SETTING] Edit > Account Settings > OpenPGP Security > Autocrypt > Enable Autocrypt ***/
|
|
user_pref("mail.server.default.enableAutocrypt", false);
|
|
/* 6308: Prefer email encryption with known contacts
|
|
* [SETTING] Edit > Account Settings > OpenPGP Security > Autocrypt >
|
|
* Prefer encrypted emails from the people you exchange email with
|
|
* [1] https://redmine.tails.boum.org/code/issues/15923 ***/
|
|
user_pref("mail.server.default.acPreferEncrypt", 0);
|
|
|
|
/** GNUPG ***/
|
|
/* 6309: Allow the use of external GnuPG
|
|
* Whenever RNP fails to decrypt a message, Thunderbird will tray against system GnuPG
|
|
* [1] https://wiki.mozilla.org/Thunderbird:OpenPGP:Smartcards#Allow_the_use_of_external_GnuPG ***/
|
|
user_pref("mail.openpgp.allow_external_gnupg", true); // [HIDDEN PREF]
|
|
|
|
/*** [SECTION 9999]: DEPRECATED / REMOVED / LEGACY / RENAMED
|
|
Documentation denoted as [-]. Items deprecated in FF68 or earlier have been archived at [1],
|
|
which also provides a link-clickable, viewer-friendly version of the deprecated bugzilla tickets
|
|
[1] https://github.com/ghacksuserjs/ghacks-user.js/issues/123
|
|
***/
|
|
user_pref("_user.js.parrot", "9999 syntax error: the parrot's deprecated!");
|
|
/* ESR68.x still uses all the following prefs
|
|
// [NOTE] replace the * with a slash in the line above to re-enable them
|
|
// FF69
|
|
// 1405: disable WOFF2 (Web Open Font Format) [FF35+]
|
|
// [-] https://bugzilla.mozilla.org/1556991
|
|
// user_pref("gfx.downloadable_fonts.woff2.enabled", false);
|
|
// 1802: enforce click-to-play for plugins
|
|
// [-] https://bugzilla.mozilla.org/1519434
|
|
user_pref("plugins.click_to_play", true); // [DEFAULT: true FF25+]
|
|
// 2033: disable autoplay for muted videos [FF63+] - replaced by 'media.autoplay.default' options (2030)
|
|
// [-] https://bugzilla.mozilla.org/1562331
|
|
// user_pref("media.autoplay.allow-muted", false);
|
|
// * * * /
|
|
// FF71
|
|
// 2608: disable WebIDE and ADB extension download
|
|
// [1] https://trac.torproject.org/projects/tor/ticket/16222
|
|
// [-] https://bugzilla.mozilla.org/1539462
|
|
user_pref("devtools.webide.enabled", false); // [DEFAULT: false FF70+]
|
|
user_pref("devtools.webide.autoinstallADBExtension", false); // [FF64+]
|
|
// 2731: enforce websites to ask to store data for offline use
|
|
// [1] https://support.mozilla.org/questions/1098540
|
|
// [2] https://bugzilla.mozilla.org/959985
|
|
// [-] https://bugzilla.mozilla.org/1574480
|
|
user_pref("offline-apps.allow_by_default", false);
|
|
// * * * /
|
|
// FF72
|
|
// 0105a: disable Activity Stream telemetry
|
|
// [-] https://bugzilla.mozilla.org/1597697
|
|
user_pref("browser.newtabpage.activity-stream.telemetry.ping.endpoint", "");
|
|
// 0330: disable Hybdrid Content telemetry
|
|
// [-] https://bugzilla.mozilla.org/1520491
|
|
user_pref("toolkit.telemetry.hybridContent.enabled", false); // [FF59+]
|
|
// 2720: enforce IndexedDB (IDB) as enabled
|
|
// IDB is required for extensions and Firefox internals (even before FF63 in [1])
|
|
// To control *website* IDB data, control allowing cookies and service workers, or use
|
|
// Temporary Containers. To mitigate *website* IDB, FPI helps (4001), and/or sanitize
|
|
// on close (Offline Website Data, see 2800) or on-demand (Ctrl-Shift-Del), or automatically
|
|
// via an extension. Note that IDB currently cannot be sanitized by host.
|
|
// [1] https://blog.mozilla.org/addons/2018/08/03/new-backend-for-storage-local-api/
|
|
// [-] https://bugzilla.mozilla.org/1488583
|
|
user_pref("dom.indexedDB.enabled", true); // [DEFAULT: true]
|
|
// * * * /
|
|
// FF74
|
|
// 0203: use Mozilla geolocation service instead of Google when geolocation is enabled
|
|
// Optionally enable logging to the console (defaults to false)
|
|
// [-] https://bugzilla.mozilla.org/1613627
|
|
user_pref("geo.wifi.uri", "https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%");
|
|
// user_pref("geo.wifi.logging.enabled", true); // [HIDDEN PREF]
|
|
// 1704: set behaviour on "+ Tab" button to display container menu [FF53+] [SETUP-CHROME]
|
|
// 0=no menu (default), 1=show when clicked, 2=show on long press
|
|
// [1] https://bugzilla.mozilla.org/1328756
|
|
// [-] https://bugzilla.mozilla.org/1606265
|
|
user_pref("privacy.userContext.longPressBehavior", 2);
|
|
// 2012: limit WebGL
|
|
// [-] https://bugzilla.mozilla.org/1477756
|
|
user_pref("webgl.disable-extensions", true);
|
|
// * * * /
|
|
// FF76
|
|
// 0401: sanitize blocklist url
|
|
// [2] https://trac.torproject.org/projects/tor/ticket/16931
|
|
// [-] https://bugzilla.mozilla.org/1618188
|
|
user_pref("extensions.blocklist.url", "https://blocklists.settings.services.mozilla.com/v1/blocklist/3/%APP_ID%/%APP_VERSION%/");
|
|
// * * * /
|
|
// FF77
|
|
// 0850e: disable location bar one-off searches [FF51+]
|
|
// [1] https://www.ghacks.net/2016/08/09/firefox-one-off-searches-address-bar/
|
|
// [-] https://bugzilla.mozilla.org/1628926
|
|
// user_pref("browser.urlbar.oneOffSearches", false);
|
|
// 2605: block web content in file processes [FF55+]
|
|
// [SETUP-WEB] You may want to disable this for corporate or developer environments
|
|
// [1] https://bugzilla.mozilla.org/1343184
|
|
// [-] https://bugzilla.mozilla.org/1603007
|
|
user_pref("browser.tabs.remote.allowLinkedWebInFileUriProcess", false);
|
|
// * * * /
|
|
// FF78
|
|
// 2031: disable autoplay of HTML5 media if you interacted with the site [FF66+] - replaced by 'media.autoplay.blocking_policy'
|
|
// [-] https://bugzilla.mozilla.org/1509933
|
|
user_pref("media.autoplay.enabled.user-gestures-needed", false);
|
|
// 5000's: disable chrome animations - replaced FF77+ by 'ui.prefersReducedMotion' (4520)
|
|
// [-] https://bugzilla.mozilla.org/1640501
|
|
// user_pref("toolkit.cosmeticAnimations.enabled", false); // [FF55+]
|
|
// * * * /
|
|
// ***/
|
|
|
|
/* END: internal custom pref to test for syntax errors ***/
|
|
user_pref("_user.js.parrot", "SUCCESS: No no he's not dead, he's, he's restin'!");
|