"Restoring a session after a crash

If a site's content caused your crash (e.g., a plugin is crashing) restoring your session may restore that page and cause Firefox to crash again. If Firefox keeps crashing after choosing "Restore Session," choose "Start New Session."

Starting in Firefox 3.5, Firefox automatically restores your previous session after one crash (or unexpected close). If Firefox crashes a second time, a "Restore Session" error page is displayed, asking whether to restore the last session or start a new session. If you do not want Firefox to automatically restore your session after one crash, set the preference browser.sessionstore.max_resumed_crashes to 0 (default is 1). [2] [3] "

You can look at these articles:

http://kb.mozillazine.org/Session_Restore

http://how-to.wikia.com/wiki/How_to_disable_Firefox%27s_session_restore_crash_recovery_feature

Set the Integer pref browser.sessionstore.max_resumed_crashes to 0 on the about:config page to get the about:sessionrestore page immediately with the first restart after a crash has occurred or the Task Manager was used to close Firefox.

• http://kb.mozillazine.org/browser.sessionstore.max_resumed_crashes

That will allow you to deselect the tab(s) that you do not want to reopen, but will allow to reopen other tabs.

See:

• http://kb.mozillazine.org/Session_Restore#Restoring_a_session_after_a_crash
• http://kb.mozillazine.org/Browser.sessionstore.max_resumed_crashes

See also:

• https://wiki.mozilla.org/Session_Restore#Preferences

Thank you both!