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!

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