I would recommend you read these: https://trisquel.info/en/forum/do-youtube-dlhtml5-video-everywhere-run-nonfree-js https://notabug.org/GPast/avideo
Have a good time!
I would recommend you read these: https://trisquel.info/en/forum/do-youtube-dlhtml5-video-everywhere-run-nonfree-js https://notabug.org/GPast/avideo
Have a good time!