Spectacular! Rated 5 out of 5 stars

Coolest thing since Firefox itself. (well, maybe after Adblock Plus & Element Hiding Helper, without which my browsing would be greatly reduced)

I'm just getting back into web page design after quite some time, being very rusty and having out-dated knowledge. Having Firebug installed is helping me imensely in building up my practical knowledge of CSS and it's current usage. I had no idea how awfully most web sites are designed! ;-)

This review is for a previous version of the add-on (1.5.0).