Browsers

Power Twitter: Twitter with tools

Improve Safari's performances with SafariSpeed

Add extra features to Safari

Keep up to date on your favorite soccer team

WOT: Instantly see which sites you can trust

Bookmash: Search, Watch, and Download Multimedia Content

TwitBin: Use Twitter straight from Firefox

Amaya: An Open Source Web Browser/Editor

A Lightweight and Simple Browser

Xmarks Sync - Your Bookmarks Anywhere in Firefox