To use these add-ons, you'll need to download Firefox.

Log in
Add-on icon

Reviews for YouTube MP4

YouTube MP4 by ytmp4

4 Stars out of 5
5
267
4
77
3
17
2
8
1
74
Review by Firefox user 14034991
by Firefox user 14034991, 7 years ago
Whenever the website is slow and unreliable, this makes it easy to download and play videos offline.