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

my previous session restore crashed

  • 3 majibu
  • 4 wana tatizo hili
  • 5 views
  • Last reply by Hitman2847

more options

my previous session restore crashed because i opened firefox and it did'nt respond , so i ended it's process via Taskmanager , how can i restore cache.trashxxxx folder to cache folder so next time i open fire fox my last session opens again?? i tried copying the contents back to cach folder , but it just moves it to a new cach.trash folder

any way to help me?? i had so many important tabs open
my previous session restore crashed because i opened firefox and it did'nt respond , so i ended it's process via Taskmanager , how can i restore cache.trashxxxx folder to cache folder so next time i open fire fox my last session opens again?? i tried copying the contents back to cach folder , but it just moves it to a new cach.trash folder any way to help me?? i had so many important tabs open

Chosen solution

Okay, before you open/close Firefox again:

Your last session windows and tabs are stored in a file named sessionstore.js, not in the cache.

Using the Windows Start menu, search box or Run, type or paste the following and press Enter:

%APPDATA%\Mozilla\Firefox\Profiles

If you see only one folder (semi-random name), click into it and back up all of these files to a safe location (if you see more than one such folder, check the files in them and back up the most recent):

sessionstore.js
sessionstore.bak
sessionstore.bak-datetime

If you find any numbered files such as the following, back those up too:

sessionstore-1.js

If you can't see .js extensions, turn off the feature of Windows that hides them. See: http://support.microsoft.com/kb/865219


Can you find any files from the time that you want to restore?

Read this answer in context 👍 2

All Replies (3)

more options

Suluhisho teule

Okay, before you open/close Firefox again:

Your last session windows and tabs are stored in a file named sessionstore.js, not in the cache.

Using the Windows Start menu, search box or Run, type or paste the following and press Enter:

%APPDATA%\Mozilla\Firefox\Profiles

If you see only one folder (semi-random name), click into it and back up all of these files to a safe location (if you see more than one such folder, check the files in them and back up the most recent):

sessionstore.js
sessionstore.bak
sessionstore.bak-datetime

If you find any numbered files such as the following, back those up too:

sessionstore-1.js

If you can't see .js extensions, turn off the feature of Windows that hides them. See: http://support.microsoft.com/kb/865219


Can you find any files from the time that you want to restore?

more options

Which Windows version are you running?

more options

ok thanks , i found out how , but if i couldn't find , your post would enlighten me how to so thanks , thats what i did , i just deleted other sessionstore files that were small, and renamed the sessionstore.bak that was about 705 Kb to sessionstore.js , and it got fixed , thnx