Very easy to use, have used it for over a year, has many useful features, change of themes and much more. Now I can't open youtube without it, it feels weird. Most important, No ads.

Have been using on different operating systems for many many years, always works great.

Great addon, but would be great if add bookmark within video, like chrome extension "Bookmark it"

An ABSOLUTE MUST for any regular youtube viewers, period.

Super convenient - my preferred way to get around ads, but it can do way more than that!