Recent updates (since past updates) on firefox developer edition have made it impossible to access content, especially videos.
Youtube livestreams are unavailable, third party videos play without any audio, and theres no way to fix this from my end, for some websites with paid courses, even video doesnt play, displaying a message : “Playback isnt available on this device” .
This channel is for discussion about Developer Tools only, so I’m afraid we can’t help with your issue
Please open a bug in the Audio/Video playback module: https://bugzilla.mozilla.org/enter_bug.cgi?product=Core&component=Audio%2FVideo%3A%20Playback
Add information about your OS and Firefox version number, as well as some precise steps on how to reproduce the issue.
Thanks