Add-on Recovery Tool - Firefox 7 - If one or more of your add-ons is hidden after upgrading to Firefox 7, installing this add-on will recover them. After installing this add-on and restarting Firefox, your tabs will be restored and this tool will remove itself
Test Pilot - Firefox Addon - Test Pilot is privacy sensitive user research program run by Mozilla Labs. As a Test Pilot, you'll be joining a global community helping us to improve Mozilla products, both existing ones like Firefox and those that are still in development
Restartless Restart - This very tiny (12KB) add-on will add a "Restart" menu item to the "File" menu, optional toolbar button, and a ctrl/cmd + alt + r hotkey to Firefox, Seamonkey, and Thunderbird which will restart the program
BetterGaia - Firefox Addon - BetterGaia changes the way you work with Gaia Online. You can now chat, shop, and interact better than before with BetterGaia with improved site navigation, design, and more
UnMHT - Firefox Addon - UnMHT adds MHT file reading/writing support to Firefox. MHT (MHTML, RFC2557) is the webpage archive format to store HTML and images, CSS into single file.
If you installed Mozilla Archive Format, you can also use UnMHT feature from Firefox's built-in dialog.
· Save webpage as MHT file