Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Əgər kömək lazımdırsa lütfən yeni sual verin.

Session Restore unavailable, how to find?

  • 2 cavab
  • 5 have this problem
  • 12 views
  • Last reply by cor-el

Abigail7
Abigail7
more options

Previously the 'well this is embarrassing' homepage would give me the button to restore old tabs.

Recently a crash window had given me multiple options for which session to restore and I was choosing the most recent one.

Overnight I think my laptop restarted - This morning for some reason no session restore is available at all - and I went to look at the history tab and it's greyed out.

I have gone on the help here to try and find a solution and located in the Firefox profiles folder 2 sub folders sessions and sessionstore-backups but the files can't be opened on windows? The jscript script files 'previous' and 'recovery' pop up a window that says windows script host error code 800A03EC and windows can't open .BAK files or SESSION files

Please help I had like 90 tabs open and some have been open for ages, I need them back!

Previously the 'well this is embarrassing' homepage would give me the button to restore old tabs. Recently a crash window had given me multiple options for which session to restore and I was choosing the most recent one. Overnight I think my laptop restarted - This morning for some reason no session restore is available at all - and I went to look at the history tab and it's greyed out. I have gone on the help here to try and find a solution and located in the Firefox profiles folder 2 sub folders sessions and sessionstore-backups but the files can't be opened on windows? The jscript script files 'previous' and 'recovery' pop up a window that says windows script host error code 800A03EC and windows can't open .BAK files or SESSION files Please help I had like 90 tabs open and some have been open for ages, I need them back!

All Replies (2)

guigs
guigs
more options

Try this one: https://support.mozilla.org/en-US/kb/restore-previous-session#w_privacy-i...

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

You can open such a file in the Scratchpad (Firefox/Tools > Web Developer). Click the "Pretty Print" button to format the file for readability.

You can backup the session files in the sessionstore-backups folder in the Firefox Profile Folder to make sure not to lose possible important session data. 

previous.js (cleanBackup: copy of sessionstore.js from previous session that was loaded successfully)
recovery.js (latest version of the sessionstore written during runtime)
recovery.bak (previous version of the sessionstore written during runtime)
upgrade.js-<build_id> (backup created during an upgrade of Firefox)

You can copy a file from the sessionstore-backups folder to the main profile and rename the file to sessionstore.js to replace the current file (make a backup copy of the current sessionstore.js).