works great with chrome, i use zen as my main and it doesn't work at all won't pop up, such a shame. i have to go to brave just to use it for something real quick save it and switch back. plzzzzzzzzzzzzz fix,

CSS Peeper has been one of my most used plugins in Chrome. I switched back to Firefox recently and tried to use it again, it somehow doesn't show any pop-up in Firefox. I've seen the other reviewer saying the same thing. Once it works again, I'll gladly use it again and change my review rating accordingly. For now, this plugin only gets one star.

it doesn't pop up anything in waterfox