Microsoft still doesn't include basic codecs like H.264 in some Windows editions ("N" and "KN" for some regions in the EU and Korea), but those users can downlo

Microsoft still doesn't include basic codecs like H.264 in some Windows editions ("N" and "KN" for some regions in the EU and Korea), but those users can download Microsoft's Windows Media Feature Pack to get the codecs: https://support.mozilla.org/en-US/kb/fix-video-audio-problems-firefox-windows https://support.mozilla.org/en-US/kb/fix-video-audio-problem...