"A plugin for Firefox web browser that greatly enhances twitter.

Twitter pages now include:

• Photo sharing with embedded flickr photos
• Video sharing with embedded youtube videos
...

"Share, bookmark and e-mail web pages quickly without leaving your browser.

Shareaholic makes it easy for you to submit the web page you're on to your favorite sharing or bookmarking service, including: digg, del.i ...

"TwitKit can run along with Firefox on Windows, Mac, and Linux… so everyone can enjoy it.

TwitKit has a 'me' tab where you can view stats about you and Twitter—how many friends you've had, your location, how many t ...

"TwitterBar is an extension for the Mozilla Firefox Web browser (originally written by Tony Farndon) that allows you to post to Twitter from the Firefox address bar. Just type your tweet in the address bar and click the ...

"TwitterFox is a Firefox extension that notifies you of your friends' tweets of Twitter. (previously known as TwitterNotifier)

This extension adds a tiny icon on the status bar that notifies you when your friends u ...

"In a single browser toolbar, Yoono users can interact with the best of the Web more than ever before
by discovering, communicating, and sharing with friends across multiple networks and platforms all in < ...