Firefox 3.5 has got many new features like HTML5 support, location awareness browsing etc. There are several other minor enhancement are present in Firefox 3.5 like enhanced session restore.
In old version of Firefox we have absolutely no control over session restore, Firefox attempt to restore all the webpages which was open before Firefox was crashed however in Firefox 3.5 restore session has been enhancement to let the users to select pages which they wish to restore.
Session Restore in Firefox 3.5
It may happen that after checking and unchecking webpages from session restore list you may accidentally click on “Start New Session” instead “Restore” button and once you click on Start New Session button you will be presented with clean Firefox session and will lose the opportunity to restore your old session since there is no menu option to get back Session Restore page.
Well there is way to get back Session Restore page manually by typing follow special URLs at address bar and press enter.
So the next time when you accidentally click on wrong button use above special URL to get back session restore page.
Note: It doesn’t start with http://, you can type in existing open Firefox window or start new Firefox instance and type above special URL to access session restore page.