i been using it a few months now since i found it looking for another video blocker. now this doesn't block video by no means it enhances youtube that's already there and does a awesome job doing it. ive used it on firefox, waterfox, crome, and opera and its worked flawlessly to this point 5 stars all the way.

It Just Works. Does everything it says on the tin, and does it exceptionally well.

Muito BOM

After choosing my settings in the enhancer for YouTube it worked perfectly instantly. Will continue to use and recommend.

Es cómodo y factible. Gracias.

大変いいです

use it often. Thanks!

I am surprised at what this add-on can do. No other browser has thought about this facility

Лучшее - Best

Me encanta MOZILLA FIREFOX ES RL MEJOR DEL MUNDO, 5 ESTRELLAS.

page blinking...please make youtube quality hd addon only. i use this addon for videp quality default only

Excelente extensión. Se ha convertido en una de esas extensiones que debes tener>
¡Buen trabajo!