This is a great extension that does what it says on the box.

very nice :)

this add on does exactly what it is meant to do, perfect!

genial, eficiente !

Very good help

It just works

very very good

Works

I'm an older person and my hearing isn't what it used to be. This addon lets me turn up the volume on sites where I really need it. It has worked perfectly so far.

super

I was about to buy a speaker but this extension saved me