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| author |  sommerfeld <sommerfeld@sommerfeld.dev> | 2026-05-13 13:43:42 +0100 |
|---|---|---|
| committer | sommerfeld <sommerfeld@sommerfeld.dev> | 2026-05-13 13:43:42 +0100 |
| commit | 243ff210d3677764fabe90897bf3a08742170a2b (patch) | |
| tree | 42e1e8e6843365a061df3ce53f6d13ca7a332272 /firefox | |
| parent | 6c9641629be956399d2de24c578ebc6ca239d558 (diff) | |
| download | dotfiles-243ff210d3677764fabe90897bf3a08742170a2b.tar.gz dotfiles-243ff210d3677764fabe90897bf3a08742170a2b.tar.bz2 dotfiles-243ff210d3677764fabe90897bf3a08742170a2b.zip | |
feat(firefox): re-enable OpenH264 GMP for MS Teams video
LibreWolf disables media.gmp-provider.enabled and media.gmp-gmpopenh264.enabled
and falls back to media.webrtc.hw.h264.enabled=true. On Linux this rarely
works because Mozilla's bundled FFmpeg doesn't ship H.264 encode support
(patent policy), so the SDP offers H.264 but the encoder produces no frames.
Result: local camera preview works (raw MediaStreamTrack, no encoding) but
remote participants see no video. Affects MS Teams (H.264 primary); does not
affect Google Meet (VP8/VP9 native). Same symptom in flatpak and native
LibreWolf builds, confirming sandbox is not the cause.
arkenfox 2020 deliberately leaves media.gmp-provider.enabled commented out
and does not touch the OpenH264 plugin pref. Re-enabling here brings us in
line with arkenfox. media.gmp-manager.url is restored from LibreWolf's
data:text/plain blank so the OpenH264 GMP can actually download.
Diffstat (limited to 'firefox')
| -rw-r--r-- | firefox/user-overrides.js | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/firefox/user-overrides.js b/firefox/user-overrides.js index dfc2abb..6265f95 100644 --- a/firefox/user-overrides.js +++ b/firefox/user-overrides.js @@ -16,6 +16,16 @@ user_pref("extensions.formautofill.heuristics.enabled", false); /** DRM **/ user_pref("browser.eme.ui.enabled", false); // hide DRM UI toggle +/** OpenH264 for WebRTC (MS Teams, any H.264-only conferencing) **/ +// LibreWolf disables the GMP provider and the OpenH264 plugin, and pretends +// media.webrtc.hw.h264.enabled=true covers it. On Linux Mozilla's FFmpeg +// doesn't ship H.264 encode (patent policy), so Teams gets no usable encoder +// and remote participants see no video while local preview works. +// arkenfox 2020 deliberately leaves GMP alone; this aligns with arkenfox. +user_pref("media.gmp-provider.enabled", true); +user_pref("media.gmp-gmpopenh264.enabled", true); +user_pref("media.gmp-manager.url", "https://aus5.mozilla.org/update/3/GMP/%VERSION%/%BUILD_ID%/%BUILD_TARGET%/%LOCALE%/%CHANNEL%/%OS_VERSION%/%DISTRIBUTION%/%DISTRIBUTION_VERSION%/update.xml"); + /** Network **/ user_pref("network.dns.disableIPv6", false); // keep IPv6 enabled |