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

Wo archive tread sia. Meɖekuku bia biabia yeye ne ehia kpeɖeŋu.

Firefox crashed during secuirty software update. Very important to restore previous sessions/tabs/windows. Help please.

  • 1 ŋuɖoɖo
  • 1 masɔmasɔ sia le esi
  • 1 view
  • Nuɖoɖo mlɔetɔ cor-el

neen14
neen14
more options

Hi everyone! I just did an update this evening to my security software and in the midst of it all I lost my current session in firefox. It is very important that I restore my previous session or tabs or windows. I have read many of the articles posted on here but am still quite lost. I am able to get to the application data folder. And then am clicking on the Mozilla folder, and then the Firefox folder, and then profiles folder, and then one more folder which brings me to the files sessionstore and sessionstore.bak. From here on wards I do not know what to do. I tried to rename sessionstore.bak but that didn't work. But I believe it didn't work because I am doing something wrong. I am using windows xp. I tried the following forums but am still lost: https://support.mozilla.org/en-US/questions/961145?esab=a&s=crash+session+restore&r=10&as=s

https://support.mozilla.org/en-US/questions/954427?esab=a&s=crash+session+restore&r=4&as=s

https://support.mozilla.org/en-US/questions/963214?esab=a&s=crash+session+restore&r=0&as=s

I am not that experienced with these sort of problems so anyone's help would be greatly appreciated. Step by step instructions would be greatly appreciated.

Thanks.

Hi everyone! I just did an update this evening to my security software and in the midst of it all I lost my current session in firefox. It is very important that I restore my previous session or tabs or windows. I have read many of the articles posted on here but am still quite lost. I am able to get to the application data folder. And then am clicking on the Mozilla folder, and then the Firefox folder, and then profiles folder, and then one more folder which brings me to the files sessionstore and sessionstore.bak. From here on wards I do not know what to do. I tried to rename sessionstore.bak but that didn't work. But I believe it didn't work because I am doing something wrong. I am using windows xp. I tried the following forums but am still lost: https://support.mozilla.org/en-US/questions/961145?esab=a&s=crash+session+restore&r=10&as=s https://support.mozilla.org/en-US/questions/954427?esab=a&s=crash+session+restore&r=4&as=s https://support.mozilla.org/en-US/questions/963214?esab=a&s=crash+session+restore&r=0&as=s I am not that experienced with these sort of problems so anyone's help would be greatly appreciated. Step by step instructions would be greatly appreciated. Thanks.

All Replies (1)

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

I'm afraid that that session in lost.

The sessionstore.bak file is created at every start of Firefox as a copy of the sessionstore.js file saved in the previous session to make it possible to restore the previous session via the History menu at any time during the current session.
Once you have started Firefox more than once that previous version is replaced by that next session.
On more recent Windows (Vista and later) versions there is a way to restore a previous version of a file (*) if it has been saved as part of a session restore point, but Windows XP doesn't have this feature.

Your only option would be to check the history (History > Show All History) or browser cache (about:cache) to see if you can identify pages that you have visited.