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

Le thread ibilondoloziwe. Nceda ubuze umbuzo omtsha ukuba ufuna uncedo.

Restoring a session from the "Import and Backup" does nothing.

  • 2 iimpendulo
  • 1 inayo le ngxaki
  • 6 views
  • Impendulo yokugqibela ngu cor-el

foreverwinter
foreverwinter
more options

Hi,

Today I accidentally closed Firefox right after I opened it, before having the chance to restore the previous session. And since then, I've been trying to restore it to no avail. Clicking the "Import and Backup" button in the history, doesn't work at all. It shows the list of the previous sessions, but nothing happens when I click them. No error, no nothing.

Any assistance would be greatly appreciated.

Hi, Today I accidentally closed Firefox right after I opened it, before having the chance to restore the previous session. And since then, I've been trying to restore it to no avail. Clicking the "Import and Backup" button in the history, doesn't work at all. It shows the list of the previous sessions, but nothing happens when I click them. No error, no nothing. Any assistance would be greatly appreciated.
Iqhotyoshelwe imifanekiso ekwisikrini

All Replies (2)

Wesley Branton
Wesley Branton
more options

Those aren't sessions, though are backups of your bookmarks.

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

If it happens again then make a backup of files in the sessionstore-backups folder.

If you have already updated to Firefox 71 then check whether you have a recent upgrade file available in this folder.

Backup the session files in the sessionstore-backups folder in the Firefox Profile Folder to make sure not to lose possible important session data. Do NOT close Firefox when Firefox is already running.

You will normally find these files in the sessionstore-backups folder:

  • previous.jsonlz4 (cleanBackup: copy of sessionstore.jsonlz4 from previous session that was loaded successfully)
  • recovery.jsonlz4 (latest version of sessionstore.jsonlz4 written during runtime)
  • recovery.baklz4 (previous version of sessionstore.jsonlz4 written during runtime)
  • upgrade.jsonlz4-<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.jsonlz4 to replace the current file (make sure to backup the current sessionstore.jsonlz4).