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Codec not supported: video/mp4

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Carlos U
Carlos U
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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.

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.

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Mad Maks
Mad Maks
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hi,

maybe this articel can help you https://support.mozilla.org/en-US/kb/fix-video-audio-problems-firefox-windows

greetings Tim Maks