Close, but no cigar Rated 3 out of 5 stars

It's a damn nice try, but unfortenately it doesn't work too well in a real-life enviroment. It works on computed CSS, which means it strips your CSS-file for comments, and non-Firefox spesific CSS (-webkit-prefixed rules etc). If there had been a way to have it return the altered original CSS-file (like webdeveloper-toolbar does) the result would've been completely different. I'm hoping for an update! :)

This review is for a previous version of the add-on (0.8.2). 

There were some updates already addressing these things, please update to firefile 0.8.6 (