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Need help restoring the open tabs that are saved in Computer1, to Computer2, but Computer1 does not work

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Hi - I need some help restoring the 100+ open tabs that are in Computer1, and open them AS-IS in Computer2.

To help you understand my story......Computer1 is main machine, and I had over 100 tabs opened in there. I would like to transfer ALL of the open tabs to Computer2, before re-partitioning the C Drive in Computer1.

The problem is, my Computer1's Windows 10 is giving me problems at the moment, so I can not get into the computer by logging in. No recovery or diagnosis method will do the trick, so I will have to reinstall a fresh copy of Windows into Computer1. Besides, the computer was troubling me for having only ~50 MB available space in the C Drive (I have multiple partitions in my hard drive).

For now, I have removed the hard drive from Computer1, attached it in Computer2, and have access to the data in the various Computer1's drives.

I read many articles here in the Support Mozilla help site to restore the 100+ open tabs from Computer1, into Computer 2, but it is not working for me. I even tried copying the entire "sessionstore-backups" folder from Computer1's location, and replacing the same folder in Computer2's location.

Maybe I have to do more than just copying the "sessionstore-backups" folder, like do something additional through FireFox options??

Any help would be appreciated.

And here is the location of the "sessionstore-backups" folder in both computers:


Computer1 K:\Users\Team Umizoomi\AppData\Roaming\Mozilla\Firefox\Profiles\jrvowkxo.default\sessionstore-backups

Computer2 C:\Users\einstein jr\AppData\Roaming\Mozilla\Firefox\Profiles\x9z76c15.default-release-1\sessionstore-backups

Hi - I need some help restoring the 100+ open tabs that are in Computer1, and open them AS-IS in Computer2. To help you understand my story......Computer1 is main machine, and I had over 100 tabs opened in there. I would like to transfer ALL of the open tabs to Computer2, before re-partitioning the C Drive in Computer1. The problem is, my Computer1's Windows 10 is giving me problems at the moment, so I can not get into the computer by logging in. No recovery or diagnosis method will do the trick, so I will have to reinstall a fresh copy of Windows into Computer1. Besides, the computer was troubling me for having only ~50 MB available space in the C Drive (I have multiple partitions in my hard drive). For now, I have removed the hard drive from Computer1, attached it in Computer2, and have access to the data in the various Computer1's drives. I read many articles here in the Support Mozilla help site to restore the 100+ open tabs from Computer1, into Computer 2, but it is not working for me. I even tried copying the entire "sessionstore-backups" folder from Computer1's location, and replacing the same folder in Computer2's location. Maybe I have to do more than just copying the "sessionstore-backups" folder, like do something additional through FireFox options?? Any help would be appreciated. And here is the location of the "sessionstore-backups" folder in both computers: Computer1 K:\Users\Team Umizoomi\AppData\Roaming\Mozilla\Firefox\Profiles\jrvowkxo.default\sessionstore-backups Computer2 C:\Users\einstein jr\AppData\Roaming\Mozilla\Firefox\Profiles\x9z76c15.default-release-1\sessionstore-backups

Isisombululo esikhethiwe

You need to place sessionstore.jsonlz4 at the main profile level (i.e. the folder with the random name xxxxxxxx.default-release).

  • C:\Users\<user>\AppData\Roaming\Mozilla\Firefox\Profiles\xxxxxxxx.default-release\sessionstore.jsonlz4
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You will normally find these files in the sessionstore-backups folder:

  • previous.jsonlz4 (cleanBackup: copy of sessionstore.jsonlz4 from previous session that was loaded successfully)
  • recovery.jsonlz4 (latest version of sessionstore.jsonlz4 written during runtime)
  • recovery.baklz4 (previous version of sessionstore.jsonlz4 written during runtime)
  • upgrade.jsonlz4-<build_id> (backup created during an upgrade of Firefox)

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 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.

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cor-el:

Thanks for taking the time to reply.

Unfortunately, things did not work out as expected, as you stated above.

What I did was, I closed FireFox, then I moved all the files from the C Drive sessionstore-backups folder (current session), to another location, so basically, I emptied the C Drive sessionstore-backups folder.

Then, I went to my K Drive sessionstore-backups folder (previous session), and copied ONLY the previous.jsonlz4 to the C Drive sessionstore-backups folder, and renamed it to sessionstore.jsonlz4 (please note, the C Drive sessionstore-backups folder only has 1 file in the folder at this point).

Then I started FireFox, and went to the "Application Menu" (3 horizontal lines icon) --> History --> Restore previous session.......but the previous session was NOT restored.

I know I am missing a step or two, can you help identify it?

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Isisombululo Esikhethiwe

You need to place sessionstore.jsonlz4 at the main profile level (i.e. the folder with the random name xxxxxxxx.default-release).

  • C:\Users\<user>\AppData\Roaming\Mozilla\Firefox\Profiles\xxxxxxxx.default-release\sessionstore.jsonlz4
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cor-el:

Thank you for the quick reply, and replying to all of my questions.

I was able to get the solution after your second reply.

Greatly appreciate your help!!