This ext makes your UtubeXperience seriously enriched.
Absolutely must-have ext.

定制功能很多，另外希望能增加谷歌翻译CC字幕的功能，英语字幕有的太快了看着比较费劲，本来水平就不行。

Simply perfect. It has a loop with custom timestamp, equalizer and more. I recommend.

This a must have add-on. Respect to Maxime RF

great

This makes YouTube (and Firefox) better!

my experience with youtube greatly improved with your enhancer! thank you.

Facilita a vida... kkkk