#### Firefox & Hardware Video Decoding on Wayland

##### August 30, 2020
linux flatpak firefox ffmpeg

Hardware video decoding is now available in Firefox (version 80 at the time of writing.) While there seems to be some experimental X11 support in testing (via the MOZ_X11_EGL=1 env var) it has been working (mostly) consistently for me in Wayland via the official Flatpak on Flathub.

The settings you’ll need in about:config are:

gfx.webrender.enabled=true
gfx.webrender.all=true
media.ffmpeg.vaapi.enabled=true
media.ffmpeg.dmabuf-textures.enabled=true


Optionally if you’d like to use system ffmpeg for VP8/VP9 video decoding as well:

media.ffvpx.enabled=false


Flathub Firefox users should install org.freedesktop.Platform.ffmpeg-full for system ffmpeg. The Fedora Firefox Flatpak currently doesn’t support Flatpak’d ffmpeg.

There are some issues on my system where occassionally Twitch videos will require a full page refresh but it’s infrequent enough to not be a huge issue. There’s an upstream bug (bugzilla.mozilla.org) for an similar issue on my hardware so I believe what I’m seeing is just related to AMD Ryzen mobile APUs.

Sources: