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!

Awesome

gostei muito pena que so no fire

Very happy to see this extension on Firefox, works just as great as on Chrome!

Absolute fantastic multifeatured enhancer. All what youtube's google couldn't or wouldn't think of

Awesome features and finally I don't bleed from my eyes when browsing youtube in the dark

One of the best addons ever made.

Great Plugin to get the best experience in watching youtube content.

One more suggestion if there is any way to hide/autohide the youtube topbar(search)