Priceless Rated 5 out of 5 stars
I design a few sites and work with css and php quite a bit. This addon makes my work so much easier. I saw a friend using it, and he showed me how it worked, and I was drooling. If you do web dev of any sort, this is for you. I agree with the other posts, this should be part of the core of Firefox.This review is for a previous version of the add-on (1.05).