600% Sound Volume by Aliaksandr

4.5 Stars out of 5

1,404

196

1,800 reviews

Rated 5 out of 5
by SPEEDBALL50, 3 months ago
Rated 5 out of 5
by Firefox user 17643846, 3 months ago
I just added it and it seems to work as it promises.
Rated 5 out of 5
by Firefox user 17524205, 3 months ago
love this addon
Rated 5 out of 5
by Firefox user 14577864, 3 months ago
Rated 1 out of 5
by Speede-du-potar, 3 months ago
Ne marche plus ? Ben alors une étoile !
Rated 5 out of 5
by Mike, 3 months ago
Fixed my laptops low sound issue. Before I could hardly hear a thing now I have to turn it down.
Rated 5 out of 5
by SloshDeco, 3 months ago
Rated 5 out of 5
by PowPow216, 3 months ago
Simple, easy to use, does what it says it does. Easy 5 Stars
Rated 5 out of 5
by Firefox user 13843725, 3 months ago
Rated 4 out of 5
by DEE, 3 months ago
Rated 5 out of 5
by The_Blinded, 3 months ago
Rated 5 out of 5
by Lep, 3 months ago
Rated 5 out of 5
by art, 3 months ago
Rated 5 out of 5
by Firefox user 17635729, 3 months ago
Rated 5 out of 5
by odns, 3 months ago
Perfect as it its. A volume slider & booster that works amazingly!
Rated 5 out of 5
by Connor, 3 months ago
Genuine life-saver. Perfect for people like myself that have hard of hearing issues. Some videos are simply too quiet and this saves my life. Makes content way more enjoyable.
Rated 4 out of 5
by KennyG, 3 months ago
A great option for people like me who don't hear well to amp up the volume
Rated 5 out of 5
by Firefox user 17630952, 3 months ago
Rated 5 out of 5
by Marc_za, 3 months ago
As it says: simple and reliable. Awesome.
Rated 5 out of 5
by crumb, 3 months ago
Nothing more, nothing less. Perfect.
Rated 5 out of 5
by revkae, 3 months ago
Rated 5 out of 5
by Mushi, 3 months ago
Does what it says on the tin! Simple to use but an amazing improvement to browsing and youtube.
Rated 5 out of 5
by Firefox user 17627920, 3 months ago
Rated 5 out of 5
by Nyaa, 3 months ago
Rated 5 out of 5
by Kionum, 3 months ago