A new job means a new computer, which means lots of setup. I won’t go into details (right now) for everything, but here’s a list of Firefox plugins I “needed”:

Firebug
Web Developer
Toggle Web Developer
Console2
JSON View
Poster
XPath Checker
DOM Inspector
ScreenGrab
ColorZilla
Pixel Zoom
Pixel Perfect
Measure It
Smoothe Wheel
Selenium IDE
FlexMonkium

Note to self:
Don’t try to compile Firefox from scratch again if you can help it.