Great. But needs the ability to stay on permanently, rather than have to be turned on for each new tab. I would donate to the developer if the add-on did that.

Funciona bien para paginas que necesitan mas volumen en sus videos, ojala se mantuviera el volumen al refrescar la misma pagina, ademas de eso, funciona bien y cuidado con reventar sus altavoces <3

would be 6 stars if it worked with whatsapp audios

Doesn't say what the volume is going to be as you're changing it. But otherwise perfect

It really works !

Amazing add on for youtube .

Thanks to developer