Codec not supported: video/mp4
Hi, I recently reinstalled mozilla (formatted my PC) and now I can't play embedded videos (twitter, reddit, twitch, etc.), but it can on YouTube. In the element inspector I have the following error "codec not supported: video / mp4". I have a Windows 11 OS and the latest version of Firefox. Thank you very much for the help.
All Replies (1)
hi,
maybe this articel can help you https://support.mozilla.org/en-US/kb/fix-video-audio-problems-firefox-windows
greetings Tim Maks