This is an old revision of the document!

Important security settings

Don't allow FF to automatically fill in forms with stored passwords signon.autofillForms = false
(This can now be found in Preferences as “Autofill logins and passwords”)

HW video decoding using VAAPI

MOZ_X11_EGL=1 firefox
media.ffmpeg.vaapi.enabled = true
media.ffvpx.enabled = false
gfx.webrender.enabled = true

MOZ_X11_EGL=1 MOZ_LOG="PlatformDecoderModule:5" firefox 2>&1 | grep 'VA-API'