Trouble with streaming services(like youtube(only streams ), twitch, music streaming) on nightly
Trouble with streaming services(like youtube(only streams ), twitch, music streaming) on nightly Firefox Nightly 145.0a1 (2025-10-11) (x64) Cachy OS Binary from firefox.com
Ezalaki modifié na levkinam10
Solution eye eponami
"You cannot play videos in this browser" "This video is unavailable or not supported in this browser. (Error #4000)"
The problem solved by installing ffmpeg4.4 from repository
Tanga eyano oyo ndenge esengeli 👍 1All Replies (5)
Hi
Thank you for helping to test the Nightly build of Firefox.
Please appreciate that the Nightly build is still very much "under construction" and may have unresolved issues. Does the problem occur in the main Release build of Firefox?
Are you able to provide an English translation of the two error messages?
Do you have a link to the video that you are trying to view?
Solution eye oponami
"You cannot play videos in this browser" "This video is unavailable or not supported in this browser. (Error #4000)"
The problem solved by installing ffmpeg4.4 from repository
Streaming issues on Nightly are pretty common since it’s a testing build. You can try disabling hardware acceleration, testing with a clean profile, or switching temporarily to the stable Firefox release to confirm it’s not an OS-level issue. Also make sure all codecs are installed on CachyOS, since missing media packages can break YouTube and Twitch playback.
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