really simple and really useful, much needed. Audio on some YT videos are just too low

Works really well!

Sound Fixer is one of the best and most reliable extensions I've ever found for sound problems on Facebook, and YouTube. I've been using it for about 10 months, and it has not let me down. 👍👍

It suddenly stopped working without a warning or anything

Youtube playback speed control does not work if this plugin is installed.

Rewelacja do cichych nagrań! Brawo!

Its a great fix for a better sound in firefox. I wish it could had an option to set the gain control by default to a louder one