Volume Up Plus - Boost Sound to 600% by Volume Master

4.4 Stars out of 5

7 reviews

Rated 5 out of 5
by Firefox user 19992809, 4 days ago
Rated 5 out of 5
by Marco, 4 days ago
Rated 5 out of 5
by Firefox user 19992741, 4 days ago
Rated 1 out of 5
by Firefox user 14000756, 2 months ago
Does nothing
Rated 5 out of 5
by Xenon Community, 2 months ago
The only stable and properly working Volume Booster add-on in Firefox. For me, this was the only add-on that was able to properly help me hear sounds on my computer, which has potato speakers.
Rated 5 out of 5
by Video Hunter, 2 months ago