It is incompatible with the Mozilla Firefox browser and does not work, but it works perfectly on the others.

i used to start my browser setup with this ext. not on FF though...

not working

This extension is a major embarrassment. It's nothing like the Chrome version and incredibly limited. There should be more and better FF extensions than in Chrome, but clearly that's not the case.

What's missing is enabling disabled add-ons (extensions) and more. And aside from that. It doesn't work. It doesn't disable add-ons. Uninstalled.