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Renaming session restore backup doesn't work, how do I restore old session after a crash?

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Renaming session restore backup doesn't work, how do I restore old session after a crash?

Computer crashed and Firefox didn't remember my session. It happened a couple weeks ago so I had looked up how to fix and I learned from my mistake and saved the sessionstore.bak file before restarting Firefox. I closed Firefox, deleted sessionstore.js and renamed .bak to js but on startup it still doesn't bring up the restore session. Restore previous on the history tab still greyed out, about:sessionrestore brings up no tabs. I even tried copying that same file and also naming copies as sessionstore-1 & 2. How do I get it to work?

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Accepted Solutions
Expert Contributor

Re: Renaming session restore backup doesn't work, how do I restore old session after a crash?

You can try to restore a previous version of the sessionstore.js or sessionstore.bak file. You need to rename the .bak file to .js to make Firefox see that session.

   right-click: Properties > Previous Versions 
   http://windows.microsoft.com/en-US/windows7/Previous-versions-of-files-frequently-asked-questions 
   http://kb.mozillazine.org/sessionstore.js
   http://kb.mozillazine.org/Session_Restore 
   https://support.mozilla.org/kb/restore-previous-session
3 REPLIES
Expert Contributor

Re: Renaming session restore backup doesn't work, how do I restore old session after a crash?

You can try to restore a previous version of the sessionstore.js or sessionstore.bak file. You need to rename the .bak file to .js to make Firefox see that session.

   right-click: Properties > Previous Versions 
   http://windows.microsoft.com/en-US/windows7/Previous-versions-of-files-frequently-asked-questions 
   http://kb.mozillazine.org/sessionstore.js
   http://kb.mozillazine.org/Session_Restore 
   https://support.mozilla.org/kb/restore-previous-session
New Contributor

Re: Renaming session restore backup doesn't work, how do I restore old session after a crash?

Restore previous version worked, thank-you!

New Contributor

Re: Renaming session restore backup doesn't work, how do I restore old session after a crash?

You can use the utility at http://firefox-session-restore.herokuapp.co... to restore your tabs. Just paste in the contents of sessionstore.bak.