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!

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

This thread was archived. Please ask a new question if you need help.

Lost open tabs and cannot recover them

  • 2 replies
  • 0 have this problem
  • 1 view
  • Last reply by Kẏra

knight_magnus
knight_magnus
more options

I was trying to change some settings on Firefox and I accidentally closed it and lost all of my tabs. I have the setting enabled to open tabs from last browsing session, but I was messing with the extension OneTab and I lost my open tabs.

Just to be clear, it wasn't the fault of OneTab, this is was my fault for closing Firefox too quickly when it was restoring my tabs and I didn't allow it to finish.

Anyway, in attempting to recover my tabs, I have restored from backup my "sessionrestore-backups" folder; this didn't work. I have also restored my entire Mozilla folder in my profile; this also didn't work.

I also tried following this article (https://support.mozilla.org/en-US/kb/how-restore-browsing-session-backup), but the sessionstore.jsonlz4 file doesn't exist. I did a search for this file in my profile and it doesn't exist anywhere.

Does anyone have any ideas that may help?

Thanks in advance!

I was trying to change some settings on Firefox and I accidentally closed it and lost all of my tabs. I have the setting enabled to open tabs from last browsing session, but I was messing with the extension OneTab and I lost my open tabs. Just to be clear, it wasn't the fault of OneTab, this is was my fault for closing Firefox too quickly when it was restoring my tabs and I didn't allow it to finish. Anyway, in attempting to recover my tabs, I have restored from backup my "sessionrestore-backups" folder; this didn't work. I have also restored my entire Mozilla folder in my profile; this also didn't work. I also tried following this article (https://support.mozilla.org/en-US/kb/how-restore-browsing-session-backup), but the sessionstore.jsonlz4 file doesn't exist. I did a search for this file in my profile and it doesn't exist anywhere. Does anyone have any ideas that may help? Thanks in advance!

Chosen solution

I was able to fix this issue myself.

I had to delete all of the files in this directory first, then do the restore. Restoring the files with overwrite was not enough, I had to delete everything first. Then when I did the restore it all worked fine.

Read this answer in context 👍 0

All Replies (2)

knight_magnus
knight_magnus Question owner
more options

Chosen Solution

I was able to fix this issue myself.

I had to delete all of the files in this directory first, then do the restore. Restoring the files with overwrite was not enough, I had to delete everything first. Then when I did the restore it all worked fine.

Kẏra
Kẏra
more options

I think this is probably a common occurrence and filed a bug that can hopefully be addressed: https://bugzilla.mozilla.org/show_bug.cgi?id=1873400