отлично прибавляет звук, когда на ноутбуке уже вся громкость на максимуме, теперь нормально смотрю тихие фильмы онлайн, спасибо!

Finally can balance the sound of some broken youtube videos.

Does not work/can't get it to work.

It works according the description. The problem I found is that I couldn´t save the settings I chose and apply them in every webpage; because of that, every time I opened a new tab or reload the same page I had to configure again the extension.

Does exactly what it says it does. Nice simple and effective add on.