Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

restore tabs

  • 2 tontu
  • 0 am na jafe-jafe bii
  • 17 views
  • i mujjee tontu mooy ss-shadow

more options

I had 2 windows open, closed one, lost all of my tabs. Restore didn't work. I tried to restore by renaming session-store-backups folder files. doesn't work. There is a file called upgrade.jsonlz4 from November, maybe that could be used to restore tabs somehow?

I had 2 windows open, closed one, lost all of my tabs. Restore didn't work. I tried to restore by renaming session-store-backups folder files. doesn't work. There is a file called upgrade.jsonlz4 from November, maybe that could be used to restore tabs somehow?

Saafara biñ tànn

There was no "-> Restore Previous Session".

And "-> Recently Closed Windows/Tabs" had only a few tabs. Most were missing.

BUT, that 'scrounger' link worked easily. Just found a historical 'jsonlz4' and dropped it in. Click “Scrouge URLs”, and all my Tab pages were found.

Thank you!

Jàng tontu lii ci fi mu bokk 👍 0

All Replies (2)

more options

Did you check both "History -> Restore Previous Session" and "History -> Recently Closed Windows/Tabs" ?

The most recent upgrade file would be from updating to 120.0.1.

You can look at this tool to inspect a compressed jsonlz4 sessionstore file. This tool works locally, no uploading done.

Use one of these to close Firefox if you are currently doing that by clicking the close X on the Firefox Title bar, especially if you have multiple windows or Private Browsing windows open to prevent losing tabs in unnoticed windows.

  • "3-bar" menu button -> Exit (Power button)
  • Windows: File -> Exit
  • Mac: Firefox -> Quit Firefox
  • Linux: File -> Quit
more options

Saafara yiñ Tànn

There was no "-> Restore Previous Session".

And "-> Recently Closed Windows/Tabs" had only a few tabs. Most were missing.

BUT, that 'scrounger' link worked easily. Just found a historical 'jsonlz4' and dropped it in. Click “Scrouge URLs”, and all my Tab pages were found.

Thank you!