To use Android extensions, you'll need Firefox for Android. To explore Firefox for desktop add-ons, please visit our desktop site.

Log in
Add-on icon

Reviews for YouTube High Definition

YouTube High Definition by Baris Derin

3.8 Stars out of 5
5
728
4
162
3
104
2
79
1
234
Review by Chris Peterson
by Chris Peterson, 7 years ago
This is a great extension! Many options to make YouTube actually remember your preferred viewing preferences. The extension even works for YouTube videos embedded on other websites.