AddThis released their Firefox Add-on version 2.0 and it's awesome, by adding AddThis to your browser, you have all your social bookmarking and sharing tools at your fingertips. Share any page, anytime, with anyone.
With this extension you can customize your sharing menu to include the services you use most, while still having access to all features supported by the #1 bookmarking and sharing service, the one we use here at SheToldMe.com.