Quote Originally Posted by TwoStems View Post
The xpi doesn't open on a Mac...has anyone else tried this on Mac? I love the idea
It should. Open firefox and select the FILE menu . Then, select open file. Browse to the xpi that you downloaded and saved to your computer. Firefox should recognize it as its own file type. I don't have a mac to test it, so let me know how it goes.

Cheers,
BD