600% Sound Volume by Aliaksandr

4.5 Stars out of 5

2,566 reviews

Rated 5 out of 5
by mr.4rik, 8 months ago
It works
Rated 5 out of 5
by Firefox user 14418458, 8 months ago
Exactly what I was looking for! Add some extra volume to my videos
Rated 5 out of 5
by AlexK, 8 months ago
Rated 5 out of 5
by Marcelo, 8 months ago
Rated 5 out of 5
by Firefox user 18520455, 8 months ago
its very nice
Rated 5 out of 5
by GeltonVM, 8 months ago
Rated 5 out of 5
by MelodiCat, 8 months ago
Rated 5 out of 5
by Adam Poole, 8 months ago
exactly what it says on the tin
Rated 5 out of 5
by Harry, 8 months ago
Rated 5 out of 5
by Zombiezocker, 8 months ago
Rated 5 out of 5
by theerice, 8 months ago
Rated 5 out of 5
by Firefox user 18515918, 8 months ago
Rated 5 out of 5
by Link, 8 months ago
Rated 5 out of 5
by jane, 8 months ago
Rated 5 out of 5
by Michelle, 8 months ago
Love this!!! this is awesome!!
Rated 5 out of 5
by cavadao77, 8 months ago
Rated 5 out of 5
by Rodrigo Pereira, 8 months ago
top
Rated 5 out of 5
by Firefox user 18508575, 8 months ago
Rated 5 out of 5
by Imagination, 8 months ago
Rated 5 out of 5
by Utlamo, 8 months ago
We need after install press addon icon on target tab and volume up.
works perfectly
Rated 5 out of 5
by ONE, 8 months ago
Rated 5 out of 5
by Firefox user 18506569, 8 months ago
Rated 5 out of 5
by juan, 8 months ago
Rated 5 out of 5
by Firefox user 18502953, 8 months ago
Rated 5 out of 5
by Firefox user 18501037, 8 months ago
Does what it says on the tin. I've not encountered any problems using it over the span of a couple of years.