I've used a couple different youtube addons in the past on firefox and chrome. This one has been the best with feature set and quality so far. It does all the things that I've wanted.

Thanx for this tool

Excellent

This extension works great , I especially like the volume control from the mouse, and the other features to change the format ,size etc.

Najlepsi addon pre Youtube

Superb

Very useful! Love it!

Great extension, love all the features!

Very Useful

Amazing enhancement for my Youtube expireince

Extension vraiment efficace et permet une fluidité des images.
Add on is realy efficient

Very useful, I'm glad I have this add-on installed.

Great features that really work.

I was using myTube app for windows before this as the website wasn't great. Now after this extension, the website is packed with extra features. A must download extension if you are an avid youtube consumer.