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possible codec problem

Firefox Settings
James replied
Varus78
Varus78

hello yesterday i updated my Win10N to 22H2 version. since then i dont have audio on X videos and get error messages on nius clips (see pic) in about:support shows h264 acc and hevc as unsupported. but i cant tell if this is new or not. anyway k-lite codec pack should make them supported, right? to further narrow down the problem i used edge and visited nius and twitter and both worked fine, so the problem must be firefox. so im out of ideas how to fix that. anyone can help me? my help request on reddit https://www.reddit.com/r/firefox/comments/1fs2in3/need_helppossible_codec_problem/

hello yesterday i updated my Win10N to 22H2 version. since then i dont have audio on X videos and get error messages on nius clips (see pic) in about:support shows h264 acc and hevc as unsupported. but i cant tell if this is new or not. anyway k-lite codec pack should make them supported, right? to further narrow down the problem i used edge and visited nius and twitter and both worked fine, so the problem must be firefox. so im out of ideas how to fix that. anyone can help me? my help request on reddit https://www.reddit.com/r/firefox/comments/1fs2in3/need_helppossible_codec_problem/
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James
James
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If you have a N or KN edition of Windows 10 then you may need to install the appropriate media feature packs. https://support.mozilla.org/en-US/kb/fix-video-audio-problems-firefox-windows