finally! Rated 4 out of 5 stars

Simple but very useful. Does what it says on the tin. Should probably be a core FF feature, actually. I've wanted something like this for a long time, didn't find one last time I looked.

Yes you can mute Firefox in the Mixer, IF you run Vista or Windows 7, but it's not nearly as simple as it is with this extension.

This review is for a previous version of the add-on (0.9.8).