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

Log in
Add-on icon

Reviews for 600% Sound Volume

600% Sound Volume by Aliaksandr

4.5 Stars out of 5
5
2,475
4
312
3
103
2
78
1
222
Review by Firefox user 16541088
by Firefox user 16541088, 4 years ago
really helpful to hear small audio send by teachers on you're online class