Brillaint extension for FF. It just needs more more mode. An Auto Full Screen after clicking on a video to play.

Best Add-on ever. The speed control is outstanding, I love playing videos at 10x just to enjoy the content without taking up too much time. I never YouTube without it!

best addon, thanks for bringing it back

A must-have extension IF it worked consistently. Right now it works like 60% of the times I click on a video which defeats the purpose of having it installed. Very unfortunate.

I was sad I couldn't find this extension on Firefox. I've been using it on Chromium for a long while now and I'm extremely glad it's back here too now! I think this is one of the best, convenient and full Youtube enhancer extention out there! It's a must have, truly!

ÇOK İYİ BİR EKLENTİ

12 fps

I'M SO HAPPY THIS IS BACK. Thank you so much for your hard work

Everythings looks perfect, but the functionality that I most use is not working. Boost Volume not works, I had to run youtube videos in Chromium browsers for the feature work

For last few months started to notice that YouTube really sluggish, pages load slowly and every keyboard tap takes long time to register. It was driving me nuts and I blamed FireFox for becoming so slow. To my surprise the Enhancer was actually the root cause! 2 stars because resolution switcher and mouse volume control are very nifty. But this slowdown is unbearable to the point I had to disable this extension. I hope the author will take care of the performance issues.

So good and useful addon

This extension is the best. I don't want to miss it when using YouTube. All these possiblities to customize my experience are great.
Just one thing is a bit annoying: if i reload a YouTube-tab, this tab is "broken". I can't use the controls etc anymore. Only way to fix it for me is opening a new tab and navigate to the video (duplicating the tab or pasting the url into a new tab doesn't work)