PLEASE turn off all the console logging - it renders the browser console completely unusable. Excellent (dare I say necessary) add-on, sloppy release.

disabling autoplay doesn't work

Does a great job, but the live chat is bugged. Even when the add-on isn't enabled, it still glitches live chat and doesn't load and ruins the who live stream experience.

Thank you for not asking more permissions than it needs. Too many apps collect our data if we're not careful

Great, except on Firefox 80 on Catalina it does not allow full screen on youtube. Perhaps youtube have recently changed something and it broke this? Clicking the fullscreen icon in the bottom corner of a video maximises the window size, but not the display size of the video, which stays the same size as previously. I will come back and change 3 stars to 5 if you can fix this, the addon is excellent otherwise (and I would have sent this as a private message rather than a review, to give you a chance to fix it, but I can't find contact info)

Edited to add: I am using this with a current version of uBlock Origin. Is it also possible to suppress the overlays that sometimes come up when you pause a video?

Avast warning is possible?

It does not disable the playlists.
That feature is in the description and it is the only one that I wanted.
I don't know about the rest.
Therefore I give three stars instead of one.

No funciona correctamente en la version 66