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
2,639
4
320
3
107
2
79
1
241
Review by Firefox user 17424763
by Firefox user 17424763, 3 years ago
I have used this add-on for awhile now and I am very happy with it! It does the job!!!