600% Sound Volume by Aliaksandr

4.5 Stars out of 5

3,180 reviews

Rated 5 out of 5
by wildog.kitz, 2 years ago
Thank u for this add-on :)
Rated 5 out of 5
by Firefox user 17965939, 2 years ago
Rated 5 out of 5
by Paul_The_Dodo, 2 years ago
Rated 5 out of 5
by Joseph Ribeiro, 2 years ago
Rated 5 out of 5
by 7madi, 2 years ago
nice
Rated 5 out of 5
by Firefox user 14142949, 2 years ago
Rated 5 out of 5
by Firefox user 17962891, 2 years ago
Rated 5 out of 5
by Firefox user 17962818, 2 years ago
Rated 5 out of 5
by Firefox user 14552756, 2 years ago
Rated 5 out of 5
by lulz, 2 years ago
Rated 5 out of 5
by Zer0, 2 years ago
Rated 5 out of 5
by Firefox user 17959364, 2 years ago
Rated 4 out of 5
by micah, 2 years ago
Rated 5 out of 5
by Ryan, 2 years ago
Rated 5 out of 5
by drbambu, 2 years ago
Works perfectly with no distortion at all
Rated 5 out of 5
by Ashtaroth, 2 years ago
Rated 4 out of 5
by Armany, 2 years ago
Just need a better design, work perfectly.
Rated 5 out of 5
by Firefox user 17378787, 2 years ago
Rated 5 out of 5
by Flynn, 2 years ago
i like it
Rated 5 out of 5
by Del, 2 years ago
Rated 5 out of 5
by Firefox user 17309444, 2 years ago
简单好用
Rated 5 out of 5
by MCHeroYT, 2 years ago
Rated 5 out of 5
by Tom, 2 years ago
Rated 5 out of 5
by Firefox user 10698846, 2 years ago
Rated 2 out of 5
by technogod, 2 years ago
her sekme için tek tek ayar yapmam gerekiyor. youtube da bazen videoyu ileriye sarınca ayar bozuluyor. i need to make settings for each tab one by one. Sometimes when you fast forward the video on youtube, the setting is broken.