My favorite.

the reverse playlist is not working,
119.0.1 (64-bit)

The best YouTube addon.

Is there a way to automatically popup a video while playing if I move the mouse down to read the comments section? Then back to normal view if I move up again, automatic. Hope you can add that feature. Thanks. edit: middle mouse button scroll wheel (press middle button) not working after installing this. Only happens in youtube.

The ad removal feature doesn't seem to work since Youtube can detect an adblocker running and disable videos from showing. It displays a prompt to disable any adblocker first.Otherwise this extension is near perfect.

Nothing to configure it: no "Options" page for the extension, no new button...
I only got a "Screenshot" and a "Loop" button on youtube webpages, that's all.

Answer: I have 11 extensions installed, and have tested hundreds others. I also use Firefox since its creation.

Tried with Firefox for Android Nightly (120.0a1), but it doesn't seem to do anything.

I added this extension specifically for it's function to reverse youtube playlists, but I don't see the button to do it.

everything good, but currently if a set speed x2, it just work for the first video, later, another videos is at x1 speed

It normally works really well.
But within the last couple days it's not auto-playing the start of playlists despite the fact that i never turned that function off in the extension.