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

Hierdie gesprek is in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.

after a session is"lost", how can it be restored through backup or other folders such as Json?

  • 2 antwoorde
  • 0 hierdie probleem
  • 2 views
  • Laaste antwoord deur cor-el

thomasamorris
thomasamorris
more options

Had 2 windows open, one 5 tabs and the second window had 1300 tabs

The 1300 tab window session is lost.

Even searching history, most can not be found

What can be done?

Are there backup folders I presume or reading of a Json folder where session profiles are kept, if so how can I insert this folder for the primary session to restore lost session?

Had 2 windows open, one 5 tabs and the second window had 1300 tabs The 1300 tab window session is lost. Even searching history, most can not be found What can be done? Are there backup folders I presume or reading of a Json folder where session profiles are kept, if so how can I insert this folder for the primary session to restore lost session?

All Replies (2)

jonzn4SUSE
jonzn4SUSE
  • Top 10 Contributor
more options

See if this helps. https://support.mozilla.org/en-US/questions/1440459#answer-1637875 Are there options in the menu under history to restore anything?

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

You can try to restore the upgrade.jsonlz4 file from the last update in the sessionstore-backups folder or use a utility to browse Windows System Restore points to see if you can find a recent sessionstore.jsonlz4 file.

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 with Firefox closed.

  • make sure to backup the current sessionstore.jsonlz4

You can look at this tool to inspect a compressed jsonlz4 sessionstore file. This tool works locally, no uploading done.