600% Sound Volume by Aliaksandr

4.5 Stars out of 5

2,895

340

115

263

2,895 reviews

Rated 5 out of 5
by r3l4ps3, 2 years ago
Rated 5 out of 5
by PKing68, 2 years ago
So far it has been excellent, I am a bit hard if hearing so this add on is excellent for me
Rated 5 out of 5
by Firefox user 16844512, 2 years ago
Rated 5 out of 5
by Rosalie, 2 years ago
thanks so much! this helps when videos are really soft for no reason...
Rated 5 out of 5
by Firefox user 18142635, 2 years ago
Rated 5 out of 5
by Henrique Santana Monteiro, 2 years ago
Rated 5 out of 5
by Vanessa, 2 years ago
Excellent!! Thank you
Rated 5 out of 5
by Firefox user 16473874, 2 years ago
Rated 5 out of 5
by Firefox user 18181607, 2 years ago
Rated 5 out of 5
by Firefox user 18181387, 2 years ago
Rated 5 out of 5
by Neural, 2 years ago
Rated 5 out of 5
by AA, 2 years ago
Rated 5 out of 5
by Firefox user 16992550, 2 years ago
Rated 5 out of 5
by Hart, 2 years ago
Rated 5 out of 5
by Poizunlol, 2 years ago
Rated 5 out of 5
by crunch, 2 years ago
Rated 5 out of 5
by Colin, 2 years ago
Rated 5 out of 5
by alvineng, 2 years ago
GREAT Add-on! Very EASY to adjust the Sound Volume with this Add-on! I use it all the time!
Rated 5 out of 5
by Firefox user 18167934, 2 years ago
Rated 5 out of 5
by Firefox user 17780420, 2 years ago
Rated 5 out of 5
by Firefox user 17244819, 2 years ago
Cumpre o que promete de forma simples
Rated 5 out of 5
by Firefox user 18144006, 2 years ago
Rated 5 out of 5
by Twiztidsoul, 2 years ago
Simple and easy, does exactly what it says.
Rated 5 out of 5
by Arkanthiel, 2 years ago
Works as advertised, no frills no fuss thanks!
Rated 5 out of 5
by milkichippy, 2 years ago