Very good, i would reccomend this to sound lovers

did the job

This is the BEST volume booster for Firefox! No distortion! Works better than any CHROME booster! But hey, what do I know? LOL

Works well. A small update I'd like to see is a dark mode for the panel it opens.

When you think the tab is too quiet but you don't want to turn up the volume of your pc this is the right tool

Works great! Netflix is so much better now.

Doesn't work. Tested at 9gag. Doesn't remember the options set too. Mutes on change.

Installed not too long ago, maybe 6 weeks, and it worked. Recently it stopped working. Appears to not just for me, others reporting the same. Shame, it was great when it worked.

This works well for me in the latest Firefox update.

It used to work, but now it doesn't

Good app. Sounds clear