600% Sound Volume by Aliaksandr

4.5 Stars out of 5

2,984 reviews

Rated 5 out of 5
by SmallFog, 3 years ago
Twitter OK！
Rated 5 out of 5
by arctic, 3 years ago
great extension!
Rated 5 out of 5
by lxce, 3 years ago
Rated 5 out of 5
by Firefox user 15596967, 3 years ago
Rated 5 out of 5
by Vice, 3 years ago
Rated 5 out of 5
by tnfangel, 3 years ago
Rated 5 out of 5
by yeoman88, 3 years ago
Rated 5 out of 5
by Guns&Rozer, 3 years ago
Incredible!
Rated 5 out of 5
by karar, 3 years ago
it's amazing!
Rated 5 out of 5
by Firefox user 18005193, 3 years ago
Rated 5 out of 5
by klozaklun, 3 years ago
Rated 5 out of 5
by wiki tiki, 3 years ago
Rated 5 out of 5
by Firefox user 14239692, 3 years ago
Rated 5 out of 5
by Firefox user 13685598, 3 years ago
Rated 5 out of 5
by TeriL, 3 years ago
Just what I need for many websites. I wished it could be the default volume for all websites
Rated 5 out of 5
by Pika, 3 years ago
Rated 5 out of 5
by Firefox user 13816288, 3 years ago
Rated 5 out of 5
by 大孫, 3 years ago
Rated 5 out of 5
by Yellowknife, 3 years ago
Rated 5 out of 5
by RaulMacro, 3 years ago
Rated 5 out of 5
by wavingdragon, 3 years ago
Rated 5 out of 5
by Firefox user 17996105, 3 years ago
Rated 5 out of 5
by Firefox user 17995127, 3 years ago
Rated 5 out of 5
by Firefox user 17994882, 3 years ago
Rated 5 out of 5
by Martennn, 3 years ago
it works well. some webpages seem incompatible, but that doesn't bother me.