The world's largest social network wouldn't be complete without a direct-access toolbar. The Facebook Toolbar Firefox Add-on features a Facebook search bar, a Quick Links menu (for accessing your Profile, Friends, Inbox, Photos, Notes, etc. directly from the toolbar), a link to Facebook's home page, a share button, and a photo-upload button. The toolbar also notifies you of new pokes, messages, friend requests, and wall posts.

On the very left-hand side of the Facebook Toolbar, there's also a button for toggling the "Friends Sidebar" on and off. This sidebar shows a running list of your friends' latest status updates, so you can keep up to date as you browse other parts of the web.

Note: This link takes you to the add-on's page at Mozilla.org, where you can automatically install the file into your Firefox browser.