From ef33140e27dfc41bbfe029e32ce569ffb6eaed05 Mon Sep 17 00:00:00 2001 From: Samuel FORESTIER Date: Sat, 16 Aug 2025 15:43:58 +0200 Subject: [PATCH] Applies Arkenfox v128.0..v140.0 migration --- prefsCleaner.bat | 6 +- updater.bat | 6 +- user.js | 384 ++++++++++++++++++++++------------------------- 3 files changed, 182 insertions(+), 214 deletions(-) diff --git a/prefsCleaner.bat b/prefsCleaner.bat index 3c73271..47d3456 100644 --- a/prefsCleaner.bat +++ b/prefsCleaner.bat @@ -4,7 +4,7 @@ TITLE prefs.js cleaner REM ## prefs.js cleaner for Windows REM ## /!\ This script is a vendored/adapted version of Arkenfox own prefsCleaner.bat /!\ REM ## author: @claustromaniac -REM ## version: 2.7 +REM ## version: 2.8 CD /D "%~dp0" @@ -16,7 +16,7 @@ ECHO: ECHO ######################################## ECHO #### prefs.js cleaner for Windows #### ECHO #### by claustromaniac #### -ECHO #### v2.7 #### +ECHO #### v2.8 #### ECHO ######################################## ECHO: CALL :message "This script should be run from your Thunderbird profile directory." @@ -38,7 +38,7 @@ CALL :strlenCheck CALL :FFcheck CALL :message "Backing up prefs.js..." -FOR /F "delims=" %%# IN ('powershell get-date -format "{yyyyMMdd_HHmmss}"') DO @SET ldt=%%# +FOR /F "delims=" %%# IN ('powershell -command get-date -format "{yyyyMMdd_HHmmss}"') DO @SET ldt=%%# COPY /B /V /Y prefs.js "prefs-backup-%ldt%.js" CALL :message "Cleaning prefs.js..." diff --git a/updater.bat b/updater.bat index 19d33f7..96ea6fb 100644 --- a/updater.bat +++ b/updater.bat @@ -4,10 +4,10 @@ TITLE thunderbird user.js updater REM ## thunderbird user.js updater for Windows REM ## /!\ This script is a vendored/adapted version of Arkenfox own updater.bat /!\ REM ## author: @claustromaniac -REM ## version: 4.19 +REM ## version: 4.20 REM ## instructions: https://github.com/arkenfox/user.js/wiki/5.1-Updater-[Options]#-windows -SET v=4.19 +SET v=4.20 VERIFY ON CD /D "%~dp0" @@ -177,7 +177,7 @@ IF EXIST user.js.new ( IF DEFINED _singlebackup ( MOVE /Y user.js user.js.bak >nul ) ELSE ( - FOR /F "delims=" %%# IN ('powershell get-date -format "{yyyyMMdd_HHmmss}"') DO @SET ldt=%%# + FOR /F "delims=" %%# IN ('powershell -command get-date -format "{yyyyMMdd_HHmmss}"') DO @SET ldt=%%# MOVE /Y user.js "user-backup-!ldt!.js" >nul ) REN user.js.new user.js diff --git a/user.js b/user.js index 6a733de..56dc68f 100644 --- a/user.js +++ b/user.js @@ -32,7 +32,7 @@ - DON'T wait for thunderbird-user.js to update Thunderbird, nothing major changes these days * Each release - run prefsCleaner to reset prefs made inactive, including deprecated (9999) - * If you use a previous ESR + * ESR (Extended Support Release) - It is recommended to not use the updater, or you will get a later version which may cause issues. So you should manually append your overrides (and keep a copy), and manually update when you change ESR releases (thunderbird-user.js is already past that release) @@ -64,6 +64,7 @@ 6000: DON'T TOUCH 7000: DON'T BOTHER 8000: DON'T BOTHER: FINGERPRINTING + 8500: TELEMETRY 9000: NON-PROJECT RELATED 9100: THUNDERBIRD (AUTO CONFIG / UI / HEADERS / ADDRESS BOOK) 9200: EMAIL COMPOSITION (ENCODING / FORMAT / VIEW) @@ -107,44 +108,9 @@ user_pref("extensions.getAddons.showPane", false); // [HIDDEN PREF] /* 0321: disable recommendations in about:addons' Extensions and Themes panes [FF68+] ***/ user_pref("extensions.htmlaboutaddons.recommendations.enabled", false); /* 0322: disable personalized Extension Recommendations in about:addons and AMO [FF65+] - * [NOTE] This pref has no effect when Health Reports (0331) are disabled + * [NOTE] This pref has no effect when Health Reports (8501) are disabled * [1] https://support.mozilla.org/kb/personalized-extension-recommendations ***/ user_pref("browser.discovery.enabled", false); -/* 0323: disable shopping experience [FF116+] - * [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1840156#c0 ***/ -user_pref("browser.shopping.experience2023.enabled", false); // [DEFAULT: false] - -/** TELEMETRY ***/ -/* 0330: disable new data submission [FF41+] - * If disabled, no policy is shown or upload takes place, ever - * [1] https://bugzilla.mozilla.org/1195552 - * [2] https://searchfox.org/comm-esr115/source/mail/components/telemetry/README.md#165 ***/ -user_pref("datareporting.policy.dataSubmissionEnabled", false); -user_pref("datareporting.policy.dataSubmissionPolicyBypassNotification", true); -/* 0331: disable Health Reports - * [SETTING] Privacy & Security > Thunderbird Data Collection and Use > Allow Thunderbird to send technical... ***/ -user_pref("datareporting.healthreport.uploadEnabled", false); -/* 0332: disable telemetry - * The "unified" pref affects the behavior of the "enabled" pref - * - If "unified" is false then "enabled" controls the telemetry module - * - If "unified" is true then "enabled" only controls whether to record extended data - * [NOTE] "toolkit.telemetry.enabled" is now LOCKED to reflect prerelease (true) or release builds (false) [2] - * [1] https://firefox-source-docs.mozilla.org/toolkit/components/telemetry/telemetry/internals/preferences.html - * [2] https://medium.com/georg-fritzsche/data-preference-changes-in-firefox-58-2d5df9c428b5 ***/ -user_pref("toolkit.telemetry.unified", false); -user_pref("toolkit.telemetry.enabled", false); // see [NOTE] -user_pref("toolkit.telemetry.server", "data:,"); -user_pref("toolkit.telemetry.archive.enabled", false); -user_pref("toolkit.telemetry.newProfilePing.enabled", false); // [FF55+] -user_pref("toolkit.telemetry.shutdownPingSender.enabled", false); // [FF55+] -user_pref("toolkit.telemetry.updatePing.enabled", false); // [FF56+] -user_pref("toolkit.telemetry.bhrPing.enabled", false); // [FF57+] Background Hang Reporter -user_pref("toolkit.telemetry.firstShutdownPing.enabled", false); // [FF57+] -/* 0333: disable Telemetry Coverage - * [1] https://blog.mozilla.org/data/2018/08/20/effectively-measuring-search-in-firefox/ ***/ -user_pref("toolkit.telemetry.coverage.opt-out", true); // [HIDDEN PREF] -user_pref("toolkit.coverage.opt-out", true); // [FF64+] [HIDDEN PREF] -user_pref("toolkit.coverage.endpoint.base", ""); /** STUDIES ***/ /* 0340: disable Studies @@ -288,7 +254,7 @@ user_pref("network.file.disable_unc_paths", true); // [HIDDEN PREF] * [1] https://bugzilla.mozilla.org/1433507 * [2] https://en.wikipedia.org/wiki/GVfs * [3] https://en.wikipedia.org/wiki/GIO_(software) ***/ -user_pref("network.gio.supported-protocols", ""); // [HIDDEN PREF] [DEFAULT: "" FF118+] +user_pref("network.gio.supported-protocols", ""); // [HIDDEN PREF] [DEFAULT: ""] /* 0705: disable proxy direct failover for system requests [FF91+] * [WARNING] Default true is a security feature against malicious extensions [1] * [SETUP-CHROME] If you use a proxy and you trust your extensions @@ -336,17 +302,20 @@ user_pref("browser.urlbar.suggest.searches", false); user_pref("browser.urlbar.trending.featureGate", false); /* 0806: disable urlbar suggestions ***/ user_pref("browser.urlbar.addons.featureGate", false); // [FF115+] -user_pref("browser.urlbar.mdn.featureGate", false); // [FF117+] [HIDDEN PREF] -user_pref("browser.urlbar.weather.featureGate", false); // [FF108+] [DEFAULT: false] -user_pref("browser.urlbar.yelp.featureGate", false); // [FF124+] [DEFAULT: false] +user_pref("browser.urlbar.amp.featureGate", false); // [FF141+] adMarketplace +user_pref("browser.urlbar.fakespot.featureGate", false); // [FF130+] [DEFAULT: false] +user_pref("browser.urlbar.mdn.featureGate", false); // [FF117+] +user_pref("browser.urlbar.weather.featureGate", false); // [FF108+] +user_pref("browser.urlbar.wikipedia.featureGate", false); // [FF141+] +user_pref("browser.urlbar.yelp.featureGate", false); // [FF124+] /* 0807: disable urlbar clipboard suggestions [FF118+] ***/ user_pref("browser.urlbar.clipboard.featureGate", false); /* 0808: disable recent searches [FF120+] - * [NOTE] Recent searches are cleared with history (2811) + * [NOTE] Recent searches are cleared with history (2811+) * [1] https://support.mozilla.org/kb/search-suggestions-firefox ***/ // user_pref("browser.urlbar.recentsearches.featureGate", false); /* 0810: disable search and form history - * [NOTE] We also clear formdata on exit (2811) + * [NOTE] We also clear formdata on exit (2811+) * [SETUP-WEB] Be aware that autocomplete form data can be read by third parties [1][2] * [1] https://blog.mindedsecurity.com/2011/10/autocompleteagain.html * [2] https://bugzilla.mozilla.org/381681 ***/ @@ -356,7 +325,7 @@ user_pref("browser.urlbar.suggest.engines", false); /* 0820: disable coloring of visited links * Bulk rapid history sniffing was mitigated in 2010 [1][2]. Slower and more expensive * redraw timing attacks were largely mitigated in FF77+ [3]. Using RFP (4501) further hampers timing - * attacks. Don't forget clearing history on exit (2811). However, social engineering [2#limits][4][5] + * attacks. Don't forget clearing history on exit (2811+). However, social engineering [2#limits][4][5] * and advanced targeted timing attacks could still produce usable results * [1] https://developer.mozilla.org/docs/Web/CSS/Privacy_and_the_:visited_selector * [2] https://dbaron.org/mozilla/visited-privacy @@ -398,14 +367,17 @@ user_pref("network.auth.subresource-http-auth-allow", 1); * [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] +/* 0907: enforce no automatic authentication on Microsoft sites [FF131+] [MAC] + * On macOS, SSO only works on corporate devices ***/ +user_pref("network.http.microsoft-entra-sso.enabled", true); /*** [SECTION 1000]: DISK AVOIDANCE ***/ user_pref("_user.js.parrot", "1000 syntax error: the parrot's gone to meet 'is maker!"); /* 1001: disable disk cache - * [NOTE] We also clear cache on exit (2811) + * [NOTE] We also clear cache on exit (2811+) * [SETUP-CHROME] If you think disk cache helps perf, then feel free to override this ***/ user_pref("browser.cache.disk.enable", false); -/* 1002: disable media cache from writing to disk in Private Browsing +/* 1002: set media cache in Private Browsing to in-memory and increase its maximum size * [NOTE] MSE (Media Source Extensions) are already stored in-memory in PB ***/ user_pref("browser.privatebrowsing.forceMediaMemoryCache", true); // [FF75+] user_pref("media.memory_cache_max_size", 65536); @@ -419,7 +391,7 @@ user_pref("toolkit.winRegisterApplicationRestart", false); /* 1006: disable favicons in shortcuts [WINDOWS] * 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 ***/ + * If set to false then the shortcuts use a generic Thunderbird icon ***/ user_pref("browser.shell.shortcutFavicons", false); /* 1901: disable disk cache for messages not in offline store */ user_pref("mail.imap.use_disk_cache2", false); @@ -466,13 +438,14 @@ user_pref("security.tls.enable_0rtt_data", false); * [1] https://en.wikipedia.org/wiki/Ocsp ***/ user_pref("security.OCSP.enabled", 1); // [DEFAULT: 1] /* 1212: set OCSP fetch failures (non-stapled, see 1211) to hard-fail - * [SETUP-WEB] SEC_ERROR_OCSP_SERVER_ERROR + * [SETUP-WEB] SEC_ERROR_OCSP_SERVER_ERROR | SEC_ERROR_OCSP_UNAUTHORIZED_REQUEST * When a CA cannot be reached to validate a cert, Thunderbird's just continues the connection (=soft-fail) * Setting this pref to true tells Thunderbird's 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 ***/ + * [2] https://www.imperialviolet.org/2014/04/19/revchecking.html + * [3] https://letsencrypt.org/2024/12/05/ending-ocsp/ ***/ user_pref("security.OCSP.require", true); /** CERTS / HPKP (HTTP Public Key Pinning) ***/ @@ -488,7 +461,7 @@ user_pref("security.cert_pinning.enforcement_level", 2); * 3 = consult CRLite and enforce "Not Revoked" results, but defer to OCSP for "Revoked" (default) * [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1429800,1670985,1753071 * [2] https://blog.mozilla.org/security/tag/crlite/ ***/ -user_pref("security.remote_settings.crlite_filters.enabled", true); +user_pref("security.remote_settings.crlite_filters.enabled", true); // [DEFAULT: true FF137+] user_pref("security.pki.crlite_mode", 2); /* 1225: enable loading of client certificates stored in OS certificate storage * Bug: this does **NOT** work for S/MIME [1] @@ -548,8 +521,8 @@ user_pref("privacy.userContext.enabled", true); user_pref("privacy.userContext.ui.enabled", true); /* 1703: set external links to open in site-specific containers [FF123+] * [SETUP-WEB] Depending on your container extension(s) and their settings - * true=Firefox will not choose a container (so your extension can) - * false=Firefox will choose the container/no-container (default) + * true=Thunderbird will not choose a container (so your extension can) + * false=Thunderbird will choose the container/no-container (default) * [1] https://bugzilla.mozilla.org/1874599 ***/ // user_pref("browser.link.force_default_user_context_id_for_external_opens", true); @@ -589,8 +562,6 @@ user_pref("devtools.debugger.remote-enabled", false); // [DEFAULT: false] /* 2616: remove special permissions for certain mozilla domains [FF35+] * [1] resource://app/defaults/permissions ***/ user_pref("permissions.manager.defaultsUrl", ""); -/* 2617: remove webchannel whitelist ***/ -user_pref("webchannel.allowObject.urlWhitelist", ""); /* 2619: use Punycode in Internationalized Domain Names to eliminate possible spoofing * [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) @@ -611,15 +582,19 @@ user_pref("network.IDN_show_punycode", true); * [1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=pdf.js+firefox ***/ user_pref("pdfjs.disabled", false); // [DEFAULT: false] user_pref("pdfjs.enableScripting", false); // [FF86+] -/* 2624: disable middle click on new tab button opening URLs or searches using clipboard [FF115+] */ +/* 2624: disable middle click on new tab button opening URLs or searches using clipboard [FF115+] ***/ user_pref("browser.tabs.searchclipboardfor.middleclick", false); // [DEFAULT: false NON-LINUX] /* 2630: disable content analysis by DLP (Data Loss Prevention) agents * DLP agents are background processes on managed computers that allow enterprises to monitor locally running * applications for data exfiltration events, which they can allow/block based on customer defined DLP policies. * 0=Block all requests, 1=Warn on all requests (which lets the user decide), 2=Allow all requests - * [1] https://github.com/chromium/content_analysis_sdk */ + * [1] https://github.com/chromium/content_analysis_sdk ***/ user_pref("browser.contentanalysis.enabled", false); // [FF121+] [DEFAULT: false] user_pref("browser.contentanalysis.default_result", 0); // [FF127+] [DEFAULT: 0] +/* 2635: disable referrer and storage access for resources injected by content scripts [FF139+] ***/ +user_pref("privacy.antitracking.isolateContentScriptResources", true); +/* 2640: disable CSP Level 2 Reporting [FF140+] ***/ +user_pref("security.csp.reporting.enabled", false); /** DOWNLOADS ***/ /* 2651: enable user interaction for security by always asking where to download @@ -655,72 +630,55 @@ user_pref("_user.js.parrot", "2700 syntax error: the parrot's joined the bleedin /*** [SECTION 2800]: SHUTDOWN & SANITIZING ***/ user_pref("_user.js.parrot", "2800 syntax error: the parrot's bleedin' demised!"); /* 2810: enable Thunderbird to clear items on shutdown - * [NOTE] In FF129+ clearing "siteSettings" on shutdown (2811), or manually via site data (2820) and + * [NOTE] In FF129+ clearing "siteSettings" on shutdown (2811+), or manually via site data (2820+) and * via history (2830), will no longer remove sanitize on shutdown "cookie and site data" site exceptions (2815) ***/ user_pref("privacy.sanitize.sanitizeOnShutdown", true); -/** SANITIZE ON SHUTDOWN: IGNORES "ALLOW" SITE EXCEPTIONS | v2 migration is FF128+ ***/ -/* 2811: set/enforce what items to clear on shutdown (if 2810 is true) [SETUP-CHROME] - * [NOTE] If "history" is true, downloads will also be cleared ***/ -user_pref("privacy.clearOnShutdown.cache", true); // [DEFAULT: true] -user_pref("privacy.clearOnShutdown_v2.cache", true); // [FF128+] [DEFAULT: true] -user_pref("privacy.clearOnShutdown.downloads", true); // [DEFAULT: true] -user_pref("privacy.clearOnShutdown.formdata", true); // [DEFAULT: true] -user_pref("privacy.clearOnShutdown.history", true); // [DEFAULT: true] -user_pref("privacy.clearOnShutdown_v2.historyFormDataAndDownloads", true); // [FF128+] [DEFAULT: true] - // user_pref("privacy.clearOnShutdown.siteSettings", false); // [DEFAULT: false] - // user_pref("privacy.clearOnShutdown_v2.siteSettings", false); // [FF128+] [DEFAULT: false] -/* 2812: set Session Restore to clear on shutdown (if 2810 is true) [FF34+] - * [NOTE] Not needed if Session Restore is not used (0102) or it is already cleared with history (2811) +/** SANITIZE ON SHUTDOWN: IGNORES "ALLOW" SITE EXCEPTIONS ***/ +/* 2811: set/enforce clearOnShutdown items (if 2810 is true) [SETUP-CHROME] [FF128+] ***/ +user_pref("privacy.clearOnShutdown_v2.cache", true); // [DEFAULT: true] +user_pref("privacy.clearOnShutdown_v2.historyFormDataAndDownloads", true); // [DEFAULT: true] + // user_pref("privacy.clearOnShutdown_v2.siteSettings", false); // [DEFAULT: false] +/* 2812: set/enforce clearOnShutdown items [FF136+] ***/ +user_pref("privacy.clearOnShutdown_v2.browsingHistoryAndDownloads", true); // [DEFAULT: true] +user_pref("privacy.clearOnShutdown_v2.downloads", true); // [HIDDEN] +user_pref("privacy.clearOnShutdown_v2.formdata", true); +/* 2813: set Session Restore to clear on shutdown (if 2810 is true) [FF34+] + * [NOTE] Not needed if Session Restore is not used (0102) or it is already cleared with history (2811+) * [NOTE] If true, this prevents resuming from crashes (also see 5008) ***/ // user_pref("privacy.clearOnShutdown.openWindows", true); -/** SANITIZE ON SHUTDOWN: RESPECTS "ALLOW" SITE EXCEPTIONS FF103+ | v2 migration is FF128+ ***/ -/* 2815: set "Cookies" and "Site Data" to clear on shutdown (if 2810 is true) [SETUP-CHROME] - * [NOTE] Exceptions: A "cookie" permission also controls "offlineApps" (see note below). For cross-domain logins, - * add exceptions for both sites e.g. https://www.youtube.com (site) + https://accounts.google.com (single sign on) - * [NOTE] "offlineApps": Offline Website Data: localStorage, service worker cache, QuotaManager (IndexedDB, asm-cache) - * [NOTE] "sessions": Active Logins (has no site exceptions): refers to HTTP Basic Authentication [1], not logins via cookies - * [WARNING] Be selective with what sites you "Allow", as they also disable partitioning (1767271) - * [SETTING] to add site exceptions: Ctrl+I>Permissions>Cookies>Allow (when on the website in question) - * [SETTING] to manage site exceptions: Options>Privacy & Security>Permissions>Settings - * [1] https://en.wikipedia.org/wiki/Basic_access_authentication ***/ -user_pref("privacy.clearOnShutdown.cookies", true); // Cookies -user_pref("privacy.clearOnShutdown.offlineApps", true); // Site Data -user_pref("privacy.clearOnShutdown.sessions", true); // Active Logins [DEFAULT: true] -user_pref("privacy.clearOnShutdown_v2.cookiesAndStorage", true); // Cookies, Site Data, Active Logins [FF128+] +/** SANITIZE ON SHUTDOWN: RESPECTS "ALLOW" SITE EXCEPTIONS ***/ +/* 2815: set "Cookies" and "Site Data" to clear on shutdown (if 2810 is true) [SETUP-CHROME] [FF128+] + * [NOTE] Exceptions: For cross-domain logins, add exceptions for both sites + * e.g. https://www.youtube.com (site) + https://accounts.google.com (single sign on) + * [WARNING] Be selective with what sites you "Allow", as they also disable partitioning (1767271) ***/ +user_pref("privacy.clearOnShutdown_v2.cookiesAndStorage", true); /** SANITIZE SITE DATA: IGNORES "ALLOW" SITE EXCEPTIONS ***/ /* 2820: set manual "Clear Data" items [SETUP-CHROME] [FF128+] - * Thunderbird remembers your last choices. This will reset them when you start Thunderbird - * [SETTING] Privacy & Security>Browser Privacy>Cookies and Site Data>Clear Data ***/ + * Thunderbird remembers your last choices. This will reset them when you start Thunderbird ***/ user_pref("privacy.clearSiteData.cache", true); user_pref("privacy.clearSiteData.cookiesAndStorage", false); // keep false until it respects "allow" site exceptions user_pref("privacy.clearSiteData.historyFormDataAndDownloads", true); // user_pref("privacy.clearSiteData.siteSettings", false); +/* 2821: set manual "Clear Data" items [FF136+] ***/ +user_pref("privacy.clearSiteData.browsingHistoryAndDownloads", true); +user_pref("privacy.clearSiteData.formdata", true); -/** SANITIZE HISTORY: IGNORES "ALLOW" SITE EXCEPTIONS | clearHistory migration is FF128+ ***/ -/* 2830: set manual "Clear History" items, also via Ctrl-Shift-Del [SETUP-CHROME] - * Thunderbird remembers your last choices. This will reset them when you start Thunderbird - * [NOTE] Regardless of what you set "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); // [DEFAULT: true] -user_pref("privacy.clearHistory.cache", true); -user_pref("privacy.cpd.formdata", true); // [DEFAULT: true] -user_pref("privacy.cpd.history", true); // [DEFAULT: true] - // user_pref("privacy.cpd.downloads", true); // not used, see note above -user_pref("privacy.clearHistory.historyFormDataAndDownloads", true); -user_pref("privacy.cpd.cookies", false); -user_pref("privacy.cpd.sessions", true); // [DEFAULT: true] -user_pref("privacy.cpd.offlineApps", true); // [DEFAULT: false] +/** SANITIZE HISTORY: IGNORES "ALLOW" SITE EXCEPTIONS ***/ +/* 2830: set manual "Clear History" items, also via Ctrl-Shift-Del [SETUP-CHROME] [FF128+] + * Thunderbird remembers your last choices. This will reset them when you start Thunderbird ***/ +user_pref("privacy.clearHistory.cache", true); // [DEFAULT: true] user_pref("privacy.clearHistory.cookiesAndStorage", false); - // user_pref("privacy.cpd.openWindows", false); // Session Restore - // user_pref("privacy.cpd.passwords", false); - // user_pref("privacy.cpd.siteSettings", false); - // user_pref("privacy.clearHistory.siteSettings", false); +user_pref("privacy.clearHistory.historyFormDataAndDownloads", true); // [DEFAULT: true] + // user_pref("privacy.clearHistory.siteSettings", false); // [DEFAULT: false] +/* 2831: set manual "Clear History" items [FF136+] ***/ +user_pref("privacy.clearHistory.browsingHistoryAndDownloads", true); // [DEFAULT: true] +user_pref("privacy.clearHistory.formdata", true); /** SANITIZE MANUAL: TIMERANGE ***/ -/* 2840: set "Time range to clear" for "Clear Data" (2820) and "Clear History" (2830) +/* 2840: set "Time range to clear" for "Clear Data" (2820+) and "Clear History" (2830+) * Thunderbird remembers your last choice. This will reset the value when you start Thunderbird * 0=everything, 1=last hour, 2=last two hours, 3=last four hours, 4=today * [NOTE] Values 5 (last 5 minutes) and 6 (last 24 hours) are not listed in the dropdown, @@ -732,16 +690,25 @@ user_pref("privacy.sanitize.timeSpan", 0); In FF118+ FPP is on by default in private windows (4001) and in FF119+ is controlled by ETP (2701). FPP will also use Remote Services in future to relax FPP protections on a per site basis for compatibility (4004). + https://searchfox.org/mozilla-central/source/toolkit/components/resistfingerprinting/RFPTargetsDefault.inc - 1826408 - restrict fonts to system (kBaseFonts + kLangPackFonts) (Windows, Mac, some Linux) + [NOTE] RFPTargets + granular overrides are somewhat experimental and may produce unexpected results + - e.g. FrameRate can only be controlled per process, not per origin + 1826408 - restrict to system fonts (kBaseFonts + kLangPackFonts) (Windows, Mac, some Linux) (FF119+) + 1928705: android (FF134+) https://searchfox.org/mozilla-central/search?path=StandardFonts*.inc 1858181 - subtly randomize canvas per eTLD+1, per session and per window-mode (FF120+) + 1887682 - use fdlibm's sin, cos and tan in jsmath (FF134+) + 1978414 - various (FF143+) + 1954194: available screen resolution: return a fixed offset height from screen per platform when not full screen + 1978414: hardwareConcurrency: return 2 (existing RFPTarget) + 1977836: maxTouchPoints: return multi-touch as 5 ***/ user_pref("_user.js.parrot", "4000 syntax error: the parrot's bereft of life!"); /* 4001: enable FPP in PB mode [FF114+] * [NOTE] In FF119+, FPP for all modes (7016) is enabled with ETP Strict (2701) ***/ - // user_pref("privacy.fingerprintingProtection.pbmode", true); // [DEFAULT: true FF118+] + // user_pref("privacy.fingerprintingProtection.pbmode", true); // [DEFAULT: true] /* 4002: set global FPP overrides [FF114+] * uses "RFPTargets" [1] which despite the name these are not used by RFP * e.g. "+AllTargets,-CSSPrefersColorScheme,-JSDateTimeUTC" = all targets but allow prefers-color-scheme and do not change timezone @@ -762,20 +729,18 @@ user_pref("_user.js.parrot", "4000 syntax error: the parrot's bereft of life!"); FF128+ Arkenfox by default uses FPP (automatically enabled with ETP Strict). For most people this is all you need. To use RFP instead, add RFP (4501) to your overrides, and optionally - add letterboxing (4504), spoof_english (4506), and webgl (4520). + add letterboxing (4504), spoof_english (4506), and WebGL (4520). RFP is an all-or-nothing buy in: you cannot pick and choose what parts you want - [TEST] https://arkenfox.github.io/TZP/tzp.html [WARNING] DO NOT USE extensions to alter RFP protected metrics 418986 - limit window.screen & CSS media queries (FF41) - 1281949 - spoof screen orientation (FF50) 1360039 - spoof navigator.hardwareConcurrency as 2 (FF55) 1217238 - reduce precision of time exposed by javascript (FF55) FF56 1333651 - spoof User Agent & Navigator API - version: android version spoofed as ESR (FF119 or lower) - OS: JS spoofed as Windows 10, OS 10.15, Android 10, or Linux | HTTP Headers spoofed as Windows or Android + JS: spoofed as Windows 10, OS X 10.15, Android 10, or Linux + HTTP Header: spoofed as Windows 10 or Android 10 until FF136 then matches JS spoof 1369319 - disable device sensor API 1369357 - disable site specific zoom 1337161 - hide gamepads from content @@ -794,10 +759,9 @@ user_pref("_user.js.parrot", "4000 syntax error: the parrot's bereft of life!"); 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. - 1337157 - disable WebGL debug renderer info (FF60) 1459089 - disable OS locale in HTTP Accept-Language headers (ANDROID) (FF62) 1479239 - return "no-preference" with prefers-reduced-motion (FF63) - 1363508 - spoof/suppress Pointer Events (FF64) + 1363508 & 1826051 - spoof/suppress Pointer Events (FF64, FF132) 1492766 - spoof pointerEvent.pointerid (FF65) 1485266 - disable exposure of system colors to CSS or canvas (FF67) 1494034 - return "light" with prefers-color-scheme (FF67) @@ -809,13 +773,25 @@ user_pref("_user.js.parrot", "4000 syntax error: the parrot's bereft of life!"); 1653987 - limit font visibility to bundled and "Base Fonts" (Windows, Mac, some Linux) (FF80) 1461454 - spoof smooth=true and powerEfficient=false for supported media in MediaCapabilities (FF82) 531915 - use fdlibm's sin, cos and tan in jsmath (FF93, ESR91.1) - 1756280 - enforce navigator.pdfViewerEnabled as true and plugins/mimeTypes as hard-coded values (FF100-115) 1692609 - reduce JS timing precision to 16.67ms (previously FF55+ was 100ms) (FF102) 1422237 - return "srgb" with color-gamut (FF110) 1794628 - return "none" with inverted-colors (FF114) - 1554751 - return devicePixelRatio as 2 (previously FF41+ was 1) (FF127) 1787790 - normalize system fonts (FF128) 1835987 - spoof timezone as Atlantic/Reykjavik (previously FF55+ was UTC) (FF128) + 1834307 - always use smooth scrolling (FF132) + 1918202 - spoof screen orientation based on spoofed screen size and platform (FF132) + previously FF50+ it always returned landscape-primary and an angle of 0 + 1390465 - load all subtitles in WebVTT (Video Text Tracks) (FF133) + 1873382 - make spoofed devicePixelRatio and CSS media queries match (FF133) + previously FF41+ devicePixelRatio was hardcoded as 1 and FF127+ as 2 + previously FF41+ CSS media queries were spoofed as zoom level at a devicePixelRatio of 1 + 1955425 - return 128 for WebGPU subgroupMaxSize (FF138) + 1966860 - spoof WebGL debug renderer info (FF140) + previously FF60+ it was disabled + 1781277 - return 10GiB for storage estimate until persistent-storage granted (FF142, ESR140.1) + 1972600 - spoof network connection for HTMLMediaElement preload (FF142, ESR140.1) + 1975851 - return true for navigator.onLine (FF142, ESR140.1) + 1973265 - disable WebCodecs API (FF142?) ***/ user_pref("_user.js.parrot", "4500 syntax error: the parrot's popped 'is clogs"); /* 4501: enable RFP @@ -837,14 +813,17 @@ user_pref("privacy.resistFingerprinting.block_mozAddonManager", true); * Dynamically resizes the inner window by applying margins in stepped ranges [2] * If you use the dimension pref, then it will only apply those resolutions. * The format is "width1xheight1, width2xheight2, ..." (e.g. "800x600, 1000x1000") - * [SETUP-WEB] This is independent of RFP (4501). If you're not using RFP, or you are but - * dislike the margins, then flip this pref, keeping in mind that it is effectively fingerprintable + * [SETUP-WEB] This is independent of RFP (4501). If you're using RFP, but dislike the + * margins, then don't enable this pref, keeping in mind that it is effectively fingerprintable * [WARNING] DO NOT USE: the dimension pref is only meant for testing * [1] https://bugzilla.mozilla.org/1407366 - * [2] https://hg.mozilla.org/mozilla-central/rev/6d2d7856e468#l2.32 ***/ + * [2] https://hg.mozilla.org/mozilla-central/rev/7211cb4f58ff#l5.13 ***/ // user_pref("privacy.resistFingerprinting.letterboxing", true); // [HIDDEN PREF] // user_pref("privacy.resistFingerprinting.letterboxing.dimensions", ""); // [HIDDEN PREF] -/* 4505: disable RFP by domain (comma-separated) [FF91+] ***/ +/* 4505: disable RFP by domain [FF91+] + * [NOTE]: The pref takes comma separated values: e.g. "*domain1.tld, *domain2.tld" + * Working domain examples: "arkenfox.github.io", "*github.io" + * Non-working domain examples: "https://arkenfox.github.io", "github.io", "*arkenfox.github.io" ***/ // user_pref("privacy.resistFingerprinting.exemptedDomains", "addons.thunderbird.net"); /* 4506: disable RFP spoof english prompt [FF59+] * 0=prompt, 1=disabled, 2=enabled @@ -852,15 +831,18 @@ user_pref("privacy.resistFingerprinting.block_mozAddonManager", true); * [SETUP-WEB] when enabled, sets 'en-US, en' for displaying pages and 'en-US' as locale. * [SETTING] General>Language>Choose your preferred language for displaying pages>Choose>Request English... ***/ user_pref("privacy.spoof_english", 1); +/* 4507: skip browser.startup.blankWindow if RFP is used [FF136+] ***/ + // user_pref("privacy.resistFingerprinting.skipEarlyBlankFirstPaint", true); // [DEFAULT: true] /* 4510: disable using system colors * [SETTING] General > Language and Appearance > Fonts and Colors > Colors... > Use system colors ***/ user_pref("browser.display.use_system_colors", false); // [DEFAULT: false NON-WINDOWS] +/* 4511: disable using system accent colors ***/ +user_pref("widget.non-native-theme.use-theme-accent", false); // [DEFAULT: false WINDOWS] /* 4512: enforce links targeting new windows to open in a new tab instead * 1=most recent window or tab, 2=new window, 3=new tab * Stops malicious window sizes and some screen resolution leaks. * You can still right-click a link and open in a new window * [NOTE] Thunderbird only supports 3 (see [2]) - * [TEST] https://arkenfox.github.io/TZP/tzp.html#screen * [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/9881 * [2] https://searchfox.org/comm-esr102/source/mail/app/profile/all-thunderbird.js#721 ***/ user_pref("browser.link.open_newwindow", 3); // [DEFAULT: 3] @@ -928,7 +910,7 @@ user_pref("browser.urlbar.maxRichResults", 0); * [1] https://support.mozilla.org/kb/address-bar-autocomplete-firefox#w_url-autocomplete ***/ user_pref("browser.urlbar.autoFill", false); /* 5013: disable browsing and download history - * [NOTE] We also clear history and downloads on exit (2811) + * [NOTE] We also clear history and downloads on exit (2811+) * [SETTING] Privacy & Security>History>Custom Settings>Remember browsing and download history ***/ user_pref("places.history.enabled", false); /* 5014: disable Windows jumplist [WINDOWS] ***/ @@ -936,9 +918,6 @@ user_pref("browser.taskbar.lists.enabled", false); user_pref("browser.taskbar.lists.frequent.enabled", false); user_pref("browser.taskbar.lists.recent.enabled", false); user_pref("browser.taskbar.lists.tasks.enabled", false); -/* 5013: disable browsing and download history - * [NOTE] We also clear history and downloads on exit (2811) ***/ -user_pref("places.history.enabled", false); /* 5016: discourage downloading to desktop * 0=desktop, 1=downloads (default), 2=custom ***/ // user_pref("browser.download.folderList", 2); @@ -1000,7 +979,7 @@ user_pref("javascript.options.jit_trustedprincipals", true); // [FF75+] [HIDDEN user_pref("javascript.options.wasm", false); /* 5507: disable rendering of SVG OpenType fonts ***/ user_pref("gfx.font_rendering.opentype_svg.enabled", false); -/* 5508: disable all DRM content (EME: Encryption Media Extension) +/* 5508: disable all DRM (Digital Rights Management) content (EME: Encryption Media Extension) * Optionally hide the UI setting which also disables the DRM prompt * [TEST] https://bitmovin.com/demos/drm * [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 ***/ @@ -1054,18 +1033,22 @@ user_pref("security.tls.version.enable-deprecated", false); // [DEFAULT: false] * [WHY] To prevent wasting Mozilla's time with a custom setup ***/ user_pref("extensions.webcompat-reporter.enabled", false); // [DEFAULT: false] /* 6012: enforce Quarantined Domains [FF115+] - * [WHY] https://support.mozilla.org/kb/quarantined-domains */ + * [WHY] https://support.mozilla.org/kb/quarantined-domains ***/ user_pref("extensions.quarantinedDomains.enabled", true); // [DEFAULT: true] -/* 6050: prefsCleaner: previously active items removed from arkenfox 115-127 ***/ - // user_pref("accessibility.force_disabled", ""); - // user_pref("browser.urlbar.dnsResolveSingleWordsAfterSearch", ""); - // user_pref("geo.provider.network.url", ""); - // user_pref("geo.provider.network.logging.enabled", ""); - // user_pref("geo.provider.use_gpsd", ""); - // user_pref("network.protocol-handler.external.ms-windows-store", ""); - // user_pref("privacy.partition.always_partition_third_party_non_cookie_storage", ""); - // user_pref("privacy.partition.always_partition_third_party_non_cookie_storage.exempt_sessionstorage", ""); - // user_pref("privacy.partition.serviceWorkers", ""); +/* 6050: prefsCleaner: reset previously active items removed from arkenfox FF128+ ***/ + // user_pref("privacy.clearOnShutdown.cache", ""); + // user_pref("privacy.clearOnShutdown.cookies", ""); + // user_pref("privacy.clearOnShutdown.downloads", ""); + // user_pref("privacy.clearOnShutdown.formdata", ""); + // user_pref("privacy.clearOnShutdown.history", ""); + // user_pref("privacy.clearOnShutdown.offlineApps", ""); + // user_pref("privacy.clearOnShutdown.sessions", ""); + // user_pref("privacy.cpd.cache", ""); + // user_pref("privacy.cpd.cookies", ""); + // user_pref("privacy.cpd.formdata", ""); + // user_pref("privacy.cpd.history", ""); + // user_pref("privacy.cpd.offlineApps", ""); + // user_pref("privacy.cpd.sessions", ""); /*** [SECTION 7000]: DON'T BOTHER Thunderbird-User.JS maintainer here : @@ -1098,10 +1081,6 @@ user_pref("full-screen-api.enabled", false); * [WHY] Passive fingerprinting and perf costs. These are session-only * and isolated with network partitioning (FF85+) and/or containers ***/ // user_pref("security.ssl.disable_session_identifiers", true); -/* 7006: onions - * [WHY] Thunderbird doesn't support hidden services. Use Tor Browser ***/ - // user_pref("dom.securecontext.allowlist_onions", true); // [FF97+] 1382359/1744006 - // user_pref("network.http.referer.hideOnionSource", true); // 1305144 /* 7007: referers * [WHY] Only cross-origin referers (1602, 5510) matter ***/ user_pref("network.http.sendRefererHeader", 0); @@ -1138,17 +1117,19 @@ user_pref("dom.event.clipboardevents.enabled", false); * [NOTE] FPP (fingerprintingProtection) is ignored when RFP (4501) is enabled * [WHY] Arkenfox only supports strict (2701) which sets these at runtime ***/ // user_pref("network.cookie.cookieBehavior", 5); // [DEFAULT: 5] - // user_pref("privacy.fingerprintingProtection", true); // [FF114+] [ETP FF119+] + // user_pref("network.cookie.cookieBehavior.optInPartitioning", true); // [ETP FF132+] // user_pref("network.http.referer.disallowCrossSiteRelaxingDefault", true); // user_pref("network.http.referer.disallowCrossSiteRelaxingDefault.top_navigation", true); // [FF100+] - // user_pref("privacy.partition.network_state.ocsp_cache", true); // [DEFAULT: true FF123+] + // user_pref("privacy.bounceTrackingProtection.mode", 1); // [FF131+] [ETP FF133+] + // user_pref("privacy.fingerprintingProtection", true); // [FF114+] [ETP FF119+] + // user_pref("privacy.partition.network_state.ocsp_cache", true); // [DEFAULT: true] // user_pref("privacy.query_stripping.enabled", true); // [FF101+] // user_pref("privacy.trackingprotection.enabled", true); // user_pref("privacy.trackingprotection.socialtracking.enabled", true); // user_pref("privacy.trackingprotection.cryptomining.enabled", true); // [DEFAULT: true] // user_pref("privacy.trackingprotection.fingerprinting.enabled", true); // [DEFAULT: true] /* 7017: disable service workers - * [WHY] Already isolated with TCP (2701) behind a pref (2710) ***/ + * [WHY] Already isolated with TCP (2701) behind a pref ***/ // user_pref("dom.serviceWorkers.enabled", false); /* 7018: disable Web Notifications [FF22+] * [WHY] Web Notifications are behind a prompt (7002) @@ -1160,7 +1141,7 @@ user_pref("dom.event.clipboardevents.enabled", false); * [1] https://support.mozilla.org/kb/push-notifications-firefox ***/ // user_pref("dom.push.enabled", false); /* 7020: disable WebRTC (Web Real-Time Communication) - * [WHY] Firefox desktop uses mDNS hostname obfuscation and the private IP is never exposed until + * [WHY] Thunderbird desktop uses mDNS hostname obfuscation and the private IP is never exposed until * required in TRUSTED scenarios; i.e. after you grant device (microphone or camera) access * [TEST] https://browserleaks.com/webrtc * [1] https://groups.google.com/g/discuss-webrtc/c/6stQXi72BEU/m/2FwZd24UAQAJ @@ -1195,12 +1176,60 @@ user_pref("_user.js.parrot", "8000 syntax error: the parrot's crossed the Jordan // user_pref("general.platform.override", ""); // user_pref("general.useragent.override", ""); // user_pref("media.navigator.enabled", ""); - // user_pref("media.ondevicechange.enabled", ""); // user_pref("media.video_stats.enabled", ""); // user_pref("media.webspeech.synth.enabled", ""); // user_pref("ui.use_standins_for_native_colors", ""); // user_pref("webgl.enable-debug-renderer-info", ""); +/*** [SECTION 8500]: TELEMETRY + Upstream arkenfox does not consider Thunderbird telemetry to be a privacy or security concern - comments below. + But since most arkenfox users prefer it disabled, we'll do that rather than cause overrides. + Opt-out + - Telemetry is essential: an e-mail client is a (_very_) large complex beast costing millions to maintain + - Opt-in telemetry _does not_ work and results in data that is unrepresentative and may be misleading + Choice + - Every new profile on first use provides data collection/use policy and the ability to opt-out + - It can be disabled at any time (Settings > Privacy & Security > Data Collection and Use) + Data + - no PII (Personally Identifiable Information) + - can be viewed in about:telemetry + - uses Prio [1][2][3], Glean [4], Oblivious HTTP [5][6] + [1] https://crypto.stanford.edu/prio/ + [2] https://hacks.mozilla.org/2018/10/testing-privacy-preserving-telemetry-with-prio/ + [3] https://blog.mozilla.org/security/2019/06/06/next-steps-in-privacy-preserving-telemetry-with-prio/ + [4] https://firefox-source-docs.mozilla.org/toolkit/components/glean/index.html + [5] https://firefox-source-docs.mozilla.org/toolkit/components/glean/user/ohttp.html + [6] https://blog.mozilla.org/en/tag/oblivious-http/ +***/ +user_pref("_user.js.parrot", "8500 syntax error: the parrot's off the twig!"); +/* 8500: disable new data submission [FF41+] + * If disabled, no policy is shown or upload takes place, ever + * [1] https://bugzilla.mozilla.org/1195552 ***/ +user_pref("datareporting.policy.dataSubmissionEnabled", false); +/* 8501: disable Health Reports + * [SETTING] Privacy & Security > Thunderbird Data Collection and Use > Send technical... data ***/ +user_pref("datareporting.healthreport.uploadEnabled", false); +/* 0802: disable telemetry + * The "unified" pref affects the behavior of the "enabled" pref + * - If "unified" is false then "enabled" controls the telemetry module + * - If "unified" is true then "enabled" only controls whether to record extended data + * [NOTE] "toolkit.telemetry.enabled" is now LOCKED to reflect prerelease (true) or release builds (false) [2] + * [1] https://firefox-source-docs.mozilla.org/toolkit/components/telemetry/telemetry/internals/preferences.html + * [2] https://medium.com/georg-fritzsche/data-preference-changes-in-firefox-58-2d5df9c428b5 ***/ +user_pref("toolkit.telemetry.unified", false); +user_pref("toolkit.telemetry.enabled", false); // see [NOTE] +user_pref("toolkit.telemetry.server", "data:,"); +user_pref("toolkit.telemetry.archive.enabled", false); +user_pref("toolkit.telemetry.newProfilePing.enabled", false); // [FF55+] +user_pref("toolkit.telemetry.shutdownPingSender.enabled", false); // [FF55+] +user_pref("toolkit.telemetry.updatePing.enabled", false); // [FF56+] +user_pref("toolkit.telemetry.bhrPing.enabled", false); // [FF57+] Background Hang Reporter +user_pref("toolkit.telemetry.firstShutdownPing.enabled", false); // [FF57+] +/* 8503: disable Telemetry Coverage + * [1] https://blog.mozilla.org/data/2018/08/20/effectively-measuring-search-in-firefox/ ***/ +user_pref("toolkit.coverage.opt-out", true); // [FF64+] [HIDDEN PREF] +user_pref("toolkit.coverage.endpoint.base", ""); + /*** [SECTION 9000]: NON-PROJECT RELATED ***/ user_pref("_user.js.parrot", "9000 syntax error: the parrot's cashed in 'is chips!"); /* 9001: disable welcome notices ***/ @@ -1515,69 +1544,8 @@ user_pref("mail.openpgp.allow_external_gnupg", true); // [HIDDEN PREF] /*** [SECTION 9999]: DEPRECATED / RENAMED ***/ user_pref("_user.js.parrot", "9999 syntax error: the parrot's shuffled off 'is mortal coil!"); -/* ESR115.x still uses all the following prefs +/* ESR128.x still uses all the following prefs // [NOTE] replace the * with a slash in the line above to re-enable active ones -// FF116 -// 4506: set RFP's font visibility level (1402) [FF94+] - // [-] https://bugzilla.mozilla.org/1838415 - // user_pref("layout.css.font-visibility.resistFingerprinting", 1); // [DEFAULT: 1] -// FF117 -// 1221: disable Windows 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 - // [-] https://bugzilla.mozilla.org/1844908 -user_pref("security.family_safety.mode", 0); -// 7018: disable service worker Web Notifications [FF44+] - // [WHY] Web Notifications are behind a prompt (7002) - // [1] https://blog.mozilla.org/en/products/firefox/block-notification-requests/ - // [-] https://bugzilla.mozilla.org/1842457 - // user_pref("dom.webnotifications.serviceworker.enabled", false); -// FF118 -// 1402: limit font visibility (Windows, Mac, some Linux) [FF94+] - // Uses hardcoded lists with two parts: kBaseFonts + kLangPackFonts [1], bundled fonts are auto-allowed - // In normal windows: uses the first applicable: RFP over TP over Standard - // In Private Browsing windows: uses the most restrictive between normal and private - // 1=only base system fonts, 2=also fonts from optional language packs, 3=also user-installed fonts - // [1] https://searchfox.org/mozilla-central/search?path=StandardFonts*.inc - // [-] https://bugzilla.mozilla.org/1847599 - // user_pref("layout.css.font-visibility.private", 1); - // user_pref("layout.css.font-visibility.standard", 1); - // user_pref("layout.css.font-visibility.trackingprotection", 1); -// 2623: disable permissions delegation [FF73+] - // Currently applies to cross-origin geolocation, camera, mic and screen-sharing - // permissions, and fullscreen requests. Disabling delegation means any prompts - // for these will show/use their correct 3rd party origin - // [1] https://groups.google.com/forum/#!topic/mozilla.dev.platform/BdFOMAuCGW8/discussion - // [-] https://bugzilla.mozilla.org/1697151 - // user_pref("permissions.delegation.enabled", false); -// FF119 -// 0211: use en-US locale regardless of the system or region locale - // [SETUP-WEB] May break some input methods e.g xim/ibus for CJK languages [1] - // [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=867501,1629630 - // [-] https://bugzilla.mozilla.org/1846224 - // user_pref("javascript.use_us_english_locale", true); // [HIDDEN PREF] -// FF123 -// 0334: disable PingCentre telemetry (used in several System Add-ons) [FF57+] - // Defense-in-depth: currently covered by 0331 - // [-] https://bugzilla.mozilla.org/1868988 -user_pref("browser.ping-centre.telemetry", false); -// FF126 -// 9003: disable What's New toolbar icon [FF69+] - // [-] https://bugzilla.mozilla.org/1724300 -user_pref("browser.messaging-system.whatsNewPanel.enabled", false); -// FF127 - // 2630: disable content analysis by DLP (Data Loss Prevention) agents - replaced by default_result - // [-] https://bugzilla.mozilla.org/1880314 -user_pref("browser.contentanalysis.default_allow", false); -// 4511: enforce non-native widget theme - // Security: removes/reduces system API calls, e.g. win32k API [1] - // Fingerprinting: provides a uniform look and feel across platforms [2] - // [1] https://bugzilla.mozilla.org/1381938 - // [2] https://bugzilla.mozilla.org/1411425 - // [-] https://bugzilla.mozilla.org/1848899 -user_pref("widget.non-native-theme.enabled", true); // [DEFAULT: true] // ***/ /* END: internal custom pref to test for syntax errors ***/