Hello All --
I don't know about you, but I'm finding more than one FireFox extension to be absolutely essential in my work, so I thought we could have a fun vote on them here, then discuss how we use them.
I'm pretty sure the Web Developer extension by Chris Pederick will score high -- and you know, it's quite extensive. I have some favorite uses of it like exposing the CSS structure of a page with color outlines via "Outline Block Level Elements", but there is a lot more you can do including editing CSS and HTML.
Ok. So take the poll, and let's discuss our favorites and how they help us.