I recently changed Firefox’s config to enable Media Source Extensions and WebM VP9, and now HTML5 video will not load at any quality. Does anyone have any suggestions or insight?
what did you change, Firefox supports webm natively, to enable h264 you’d need the codec’s from packman.
See the other thread you created.
https://forums.opensuse.org/showthread.php/509506-HTML5-and-HD
If you set the mediasource extensions from “enabled” to “true” some HTML5 video may be disabled so you’d have to reset those settings to re-enable support.
TSU