Just a list of my most useful installed extensions (on my Mac) so when I go home to my PC I can compare what’s on there and make sure both have everything I need.
Abduction
Delicious Bookmarks
Dust-Me Selectors
Extension Manager Extended
Firebug
GooglePreview
Greasemonkey
HttpFox
Image Toolbar
Link Evaluator
Locationbar2
Menu Editor
Mouse Gestures Redox
Operator
Pixel Perfect
Save File To
Stop-or-Reload Button
TooManyTabs
URL Flipper
UrlParams
View Image (Filename)
Web Developer
Webmail Notifier
YSlow
Zend Studio Toolbar