> Particularly
> when you combine Firefox with the following extensions, it becomes a
> ridiculously powerful web development environment:
Those are good suggestions. Another must-have CSS-related FF extension
is Aardvark. Aardvark lets you on the fly outline individual DOM
elements, modify them, hide them, or even remove them from the DOM-tree
live. One of it''s most useful features lets you view source for only a
specific DOM element.
http://www.karmatics.com/aardvark/
If you visit that page with Firefox, you can preview Aardvark''s
functions without even installing it.