The "restart firefox" button when you install a new addon is awesome - this gives you the option to restart anyitme from the file menu while preserving open tabs in all windows.

Eric, does it keep the session info as well or just the tabs? Because if it's just the tabs - you could theoretically easily do the same by just creating a folder on the Bookmarks bar and stick all of the sites in there and simply select the Open All Tabs option when clicking on the folder to auto-open all tabs. But this doesn't save the session info, just the URLs.

As i understand it, the entire session is preserved, including multiple tabs in multiple firefox windows.

The "save all tabs" method is definitely good in a pinch, but I find I have to reboot quite a bit recently, and doing that without losing all my tabs is nice!

Sounds useful... I'll give it a shot. Thanks.