michel_ouba/FF_arkenfox_user.js
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FF_arkenfox_user.js
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update WebRTC, closes #1282

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Thorin-Oakenpants 2021-12-06 14:45:47 +00:00 committed by GitHub
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1 changed files with 17 additions and 10 deletions
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user.js
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@ -631,18 +631,25 @@ user_pref("privacy.userContext.ui.enabled", true);
/*** [SECTION 2000]: PLUGINS / MEDIA / WEBRTC ***/
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 private network address from behind your VPN, but if this
* is not your threat model, and you want Real-Time Communication, this is the pref for you ***/
user_pref("media.peerconnection.enabled", false);
/* 2002: limit WebRTC private network address leaks
* In FF70+ these settings match Mode 4 (Mode 3 in older versions) [3]
* Firefox uses mDNS hostname obfuscation on desktop (except Windows7/8) and the
* private IP is NEVER exposed, except if required in TRUSTED scenarios; i.e. after
* you grant device (microphone or camera) access
* [SETUP-HARDEN] Test first. Windows7/8 users only: behind a proxy who never use WebRTC
* [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 ***/
* [1] https://groups.google.com/g/discuss-webrtc/c/6stQXi72BEU/m/2FwZd24UAQAJ
* [2] https://datatracker.ietf.org/doc/html/draft-ietf-mmusic-mdns-ice-candidates#section-3.1.1 ***/
// user_pref("media.peerconnection.enabled", false);
/* 2002: force WebRTC inside the proxy [FF70+] ***/
user_pref("media.peerconnection.ice.proxy_only_if_behind_proxy", true);
/* 2003: force a single network interface for ICE candidates generation [FF42+]
* When using a system-wide proxy, it uses the proxy interface
* [1] https://developer.mozilla.org/en-US/docs/Web/API/RTCIceCandidate
* [2] https://wiki.mozilla.org/Media/WebRTC/Privacy ***/
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+]
/* 2004: force exclusion of private IPs from ICE candidates [FF51+]
* [SETUP-HARDEN] This will protect your private IP even in TRUSTED scenarios after you
* grant device access, but often results in breakage on video-conferencing platforms ***/
// user_pref("media.peerconnection.ice.no_host", true);
/* 2020: disable GMP (Gecko Media Plugins)
* [1] https://wiki.mozilla.org/GeckoMediaPlugins ***/
// user_pref("media.gmp-provider.enabled", false);