Whilest using the Android Firefox app, suddenly all Videos except normal GIFs stopped playing and are instead eternally loading or showing a blank screen. This is the case for Youtube, Vimeo, Imgur and all other Platforms I found so far. By using the beta version of the app in the "about:config" menu I changed the setting "media.mediasource.vp9.enabled" to "true" which fixed it for Youtube, but other Videos on other sites are still not working. I also tried disabling all addons and doing a complete clean reinstall of the app, but this too had no effect.

Any ideas on how to fix are appreciated :) Thanks in advance