Mozilla Firefox Keyboard Shortcuts - Here's a nice table of keyboard shortcuts for Mozilla's Firefox.

FIREFOX KEYBOARD SHORTCUTS
Add BookmarksCtrl + D
BookmarksCtrl + B
DOM InspectorCtrl + Shift + I
DownloadsCtrl + J
Full Screen ViewF11
HelpF1
HistoryCtrl + H
Page SourceCtrl + U
PrintCtrl + P
Refresh PageF5
Refresh Page & CacheCtrl + F5
Save Page AsCtrl + S