Whether it's LOLing with a BFF, finding a job or staying connected with old classmates, social networking add-ons keep the most popular sites front and center.
A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.
StumbleUpon is the easiest way to discover new and interesting photos, videos, web pages and more, recommended by a community of experts. Tell us what you are interested in and we recommend page after page of amazing stuff you’d never expect to see.
Integrate your Facebook life into your browser...
All your social networks in one easy to use app - it's the #1 downloaded social networking add-on for Firefox. Get all your updates, update your status and share across Facebook, Twitter, LinkedIn, YouTube & more - all at once!
Shows a full size image when you hover over thumbnails on popular websites like Facebook, Twitter or Amazon.
Shareaholic is the easiest way to share interesting links using Facebook, Twitter, Google Mail, Reader, Bookmarks, Evernote, Bitly, StumbleUpon, and more... from one simple ALL-IN-ONE add-on. This is the ultimate tool for the link sharing addict!
Mozilla Firefox with Twitter instantly connects you with what's happening in the world. Search people and topics on Twitter using @ and # from the address bar.
Copy ShortURL lets you instantly create a short URL for web pages that you visit, so you can easily share links with friends.