Not bad at all. Thank you for the free add-on.

My laptop volume was originally at like 20db even though it was 100%, now i can hear when i used this app. 10 out of 10!!!

Funciona perfeitamente.
Mas poderia memorizar melhor a seleção de volume para as paginas, quando se fecha o firefox ele reseta para 100%.

Doesn't work for all sites.

Excellent boost in sound from low input sound!

Simply does not work. (for HTML5 Apps)
- Also stop with the begging to view an ad

nice

Wonderful extension, actually works!

Perfect

Has worked well for youtube and streaming sports.

Just what I needed to watch YouTube videos with low volume. Great extension!

perfect

Outstanding You have to load it on each platform you are using. For live stream just activate and it will go with the stream. For podcast or recording it jumps to the start point so remember where you are. My audio manager is Realtek