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.

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

Can't restore a previous session (or two ago) using a backup.session file?

  • 2 பதிலளிப்புகள்
  • 10 இந்த பிரச்னைகள் உள்ளது
  • 10 views
  • Last reply by cor-el

I'm trying to recover a session, but it is not my last previous session (it's from a few sessions ago now I suppose). I started Firefox today and it didn't load the session from the previous night and instead loaded a couple of update pages that I closed. I then reopened Firefox realizing that it didn't reopen to my session and now restoring the previous session doesn't help because it opened to the updates (and I've now opened and closed it a few times trying to solve the issue). I've found a file in the session folder called "backup.session" that was modified last night and says it is a SESSION File, but can't seem to open it (web search for a program does no good and I don't see Firefox in the Browse for a Program section.

Is there anyway to open a session from a few sessions ago and is it through this backup.session file?

I'm trying to recover a session, but it is not my last previous session (it's from a few sessions ago now I suppose). I started Firefox today and it didn't load the session from the previous night and instead loaded a couple of update pages that I closed. I then reopened Firefox realizing that it didn't reopen to my session and now restoring the previous session doesn't help because it opened to the updates (and I've now opened and closed it a few times trying to solve the issue). I've found a file in the session folder called "backup.session" that was modified last night and says it is a SESSION File, but can't seem to open it (web search for a program does no good and I don't see Firefox in the Browse for a Program section. Is there anyway to open a session from a few sessions ago and is it through this backup.session file?

All Replies (2)

Try to rename "sessionstore.bak" in "sessionstore.js". Firefos should open your previous session or try to restore windows to a previous date with the function System Restore

Nellus மூலமாக திருத்தப்பட்டது

Are you using any session managing extensions like Tab Mix Plus or Session Manager?

You can try to restore a previous version of the sessionstore.js file.