Tuesday, March 19, 2024

LibreWolf can't play some YouTube videos

Playing a YouTube video in LibreWolf didn't work and I get the console error

NS_ERROR_DOM_MEDIA_FATAL_ERR --FFmpegDataDecoder : Couldn't open avcodec

It seems to get this to work you need to reboot after making the changes, I don't know why.  Restarting the browser and even deleting the profile didn't help.  Do not ignore this step.

Everything I tried didn't work, then I rebooted, and it worked.

I installed these packages, unsure exactly which 'did the trick'

gstreamer-plugins-ugly

mozilla-openh264

gstreamer-1.20-plugin-openh264

ffmpeg-4

vlc

gstreamer-plugins-libav

libvpx7


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