We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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.

How can I restore session from a different profile?

DVS75
DVS75
more options

I created a new profile and would like my previous session tabs - from an old profile - to open there.

However, there is no sessionstore.js file in the old profile (however, it gets restored there somehow).

Please let me know which files do I need to copy to the new profile for this to work.

Firefox is Quantum 60.0.2 (64-bit). I have copied all bookmarks, history and passwords successfully - just need the session restore data.

Thank you!

I created a new profile and would like my previous session tabs - from an old profile - to open there. However, there is no sessionstore.js file in the old profile (however, it gets restored there somehow). Please let me know which files do I need to copy to the new profile for this to work. Firefox is Quantum 60.0.2 (64-bit). I have copied all bookmarks, history and passwords successfully - just need the session restore data. Thank you!

All Replies (2)

Shadow110
Shadow110
more options
  • sessionstore.jsonlz4 for open tabs and pinned tabs (see also the sessionstore-backups folder)

Always do the this :

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
more options

As noted by Pkshadow, the file name has changed in Firefox 56 and later (the file is is now compressed using LZ4 compression).

If sessionstore.jsonlz4 is not present, Firefox may not have shut down normally in that profile. In that case, look in the sessionstore-backups folder for a file named recovery.jsonlz4 which would be the last capture of tabs in that session. Can you find that?