You all may know that Firefox 2.0 has the capability to resume after a system crash.Actually it can be set to always resume like in Opera.Means your last opened tabs will come up when you open firefox.There is no need to install any session restore extensions for this purpose.
Session Restore refers to browsers capability to get bac from where we stopped last time..
This feature requires some tweaking..
In address bar type in about:config and go
Right Click there and choose New>Boolean
Now a window will appear and in that box type in browser.sessionstore.resume_session and click ok
Now goto Tools>Options>Main
and under startup choose Show my Windows and Tabs from Last time
as shown in the image below
Now whenever you start firefox your last session will be restored..
Alwways Restore sessions in Firefox 2.0
