Today, Ari Steinberg, a Development Platform team member of Facebook announced that Facebook now has a Toolbar available for Mozilla Firefox 2. The toolbar page is found here.

After the toolbar is successfully installed, Facebook redirects your browser to a page that displays an image explaining how to operate the toolbar:

The Facebook toolbar has a search feature. When you click on it, a pop-up asks you to login to your account. After you log in, the toolbar becomes fully prepared to respond to the commands. In the quick links pull-down menu, you can access your profile, friends, photos, shares, notes, groups, events, and messages all in one click. In the search box, you can type the name of people that you are searching for. One of the most useful features is the Share button on the toolbar. The Share button makes bookmarking websites on Facebook efficient. Below is a screenshot of the Toolbar:

Another nice feature about the Toolbar is the sidebar that comes along with it.  The sidebar lists all of your friends and grabs any news feed updates that feature your friends.

The Facebook Toolbar is part of the open source Facebook Developers initiative, so users can view the code used to create the Toolbar and modify it.  It is not yet known whether the Toolbar will be available for Internet Explorer soon.