Such an absolutely great extension, and completely baffling that it has so few users. As opposed to the most used youtube extensions, that one is fast, not buggy and has plenty of features (the most used lacks the latter, the second most used lacks the two formers). Thanks so much: you made youtube really more usable!

Edit: first problem I've had is it doesn't remember going into theater mode so well, so I've had to add the extension Theater Mode for YouTube. It'd be best if Tweaks for Youtube could do that well on its own, but with that added extension, it's OK.

Edit 2: thanks, I was convinced I had it checked, but I must have had it mixed up when playing with the settings- works great when checked, as you said!