Ok

Please fix this bug.
https://reddit.com/r/firefox/comments/aesm24/youtube_redirecting_to_a_channel/

Excellent

it works on volume level but never works on video quality. video speed changes to 2 when i set it to normal.

No puedo negar la excelencia de la imagen y el sonido,para quien disfruta paso a paso; los videos como en vivo...

I saw that many people are complaining, for me it works fine.