Daniel / Nazca / Kaithar

Okie, just for the real time CSS editing, I couldn't live without this thing.

The disable menu is so useful.
Cookie edit ... cookie delete ... cookie add ... cookie monster!
CSS... well ... everything.
Forms, well the show password and fiddly bits are great.
Display this, that and t'other.

This tool doesn't turn your browser in to a swiss army knife.
This tool turns your browser in to the whole workshop.

(Sorry, this review isn't the most clear, I'm sleepy and blinded by awe of this thing :P)