600% Sound Volume by Aliaksandr

4.5 Stars out of 5

3,698 reviews

Rated 5 out of 5
by ExtAddon, 10 months ago
Rated 5 out of 5
by Psyborx, 10 months ago
Rated 5 out of 5
by Firefox user 13454569, 10 months ago
Rated 2 out of 5
by Fábio Dozza de Miranda, 10 months ago
Rated 5 out of 5
by ss, a year ago
Rated 5 out of 5
by Firefox user 18736913, a year ago
Rated 5 out of 5
by Noah, a year ago
Rated 4 out of 5
by ste, a year ago
molto bene......purtroppo non funziona con tutti...............
Rated 4 out of 5
by NavDad, a year ago
Rated 5 out of 5
by AlexinhoTP, a year ago
Rated 5 out of 5
by Firefox user 18406404, a year ago
should have a 'save settings' option
Rated 5 out of 5
by Zacharie, a year ago
Rated 5 out of 5
by Brennan, a year ago
Rated 2 out of 5
by Firefox user 18440490, a year ago
causes videos to lose sound from time to time. Ok when it works
Rated 5 out of 5
by Firefox user 18730144, a year ago
Rated 5 out of 5
by Firefox user 18730112, a year ago
Rated 5 out of 5
by Note, a year ago
Easy & blasti'n
Rated 5 out of 5
by Firefox user 18729019, a year ago
Rated 5 out of 5
by SpikyBananas, a year ago
Rated 5 out of 5
by yehudit5764, a year ago
my computer speakers suck this is a lifesaver
Rated 5 out of 5
by Alberto, a year ago
Fantastic!
Rated 5 out of 5
by fe2-Nyxar, a year ago
Rated 5 out of 5
by Firefox user 17903633, a year ago
Rated 5 out of 5
by V.N., a year ago
Works great!
Rated 1 out of 5
by Toadvine, a year ago
This addon stops some videos from playing, error message:

"no video with supported format or mime type found"