Rated 5 out of 5 stars
Indispensable! This has to be one of the best add-ons ever produced for web development. Before firebug, we had to make changes, upload them to the site, see what changed, then do it all over again. Debugging stylesheet problems was incredibly hard. With firebug, you see exactly how the inheritance affects your items and see right in the browser what a tweak will do in realtime. Now if only someone would make something as good for IE...or not...This review is for a previous version of the add-on (1.2.0b3).