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2623 delegation 2421 ion/jit tweak

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Thorin-Oakenpants 2020-04-06 00:39:52 +00:00 committed by GitHub
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user.js
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@ -1,7 +1,7 @@
/****** /******
* name: ghacks user.js * name: ghacks user.js
* date: 11 March 2020 * date: 05 April 2020
* version 74-alpha * version 74-beta
* authors: v52+ github | v51- www.ghacks.net * authors: v52+ github | v51- www.ghacks.net
* url: https://github.com/ghacksuserjs/ghacks-user.js * url: https://github.com/ghacksuserjs/ghacks-user.js
* license: MIT: https://github.com/ghacksuserjs/ghacks-user.js/blob/master/LICENSE.txt * license: MIT: https://github.com/ghacksuserjs/ghacks-user.js/blob/master/LICENSE.txt
@ -1055,8 +1055,7 @@ user_pref("dom.vibrator.enabled", false);
* [6] https://rh0dev.github.io/blog/2017/the-return-of-the-jit/ ***/ * [6] https://rh0dev.github.io/blog/2017/the-return-of-the-jit/ ***/
user_pref("javascript.options.asmjs", false); user_pref("javascript.options.asmjs", false);
/* 2421: disable Ion and baseline JIT to help harden JS against exploits /* 2421: disable Ion and baseline JIT to help harden JS against exploits
* [NOTE] Disabling JIT also disables Ion. In FF75+ disabling Ion no longer affects extensions (1599226) * [WARNING] Disabling Ion/JIT can cause some site issues and performance loss
* [WARNING] If false, causes the odd site issue and there is also a performance loss
* [1] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0817 ***/ * [1] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0817 ***/
// user_pref("javascript.options.ion", false); // user_pref("javascript.options.ion", false);
// user_pref("javascript.options.baselinejit", false); // user_pref("javascript.options.baselinejit", false);
@ -1192,6 +1191,12 @@ user_pref("network.protocol-handler.external.ms-windows-store", false);
/* 2622: enforce no system colors; they can be fingerprinted /* 2622: enforce no system colors; they can be fingerprinted
* [SETTING] General>Language and Appearance>Fonts and Colors>Colors>Use system colors ***/ * [SETTING] General>Language and Appearance>Fonts and Colors>Colors>Use system colors ***/
user_pref("browser.display.use_system_colors", false); // [DEFAULT: false] user_pref("browser.display.use_system_colors", false); // [DEFAULT: false]
/* 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 */
user_pref("permissions.delegation.enabled", false);
/** DOWNLOADS ***/ /** DOWNLOADS ***/
/* 2650: discourage downloading to desktop /* 2650: discourage downloading to desktop