Firefox Community Forum

Background: On August 6th morning EST after the August 5 2026 update, attempting to use firefox lead to the window with the "end process" button so I had to close the browser multiple times and then the next time I opened firefox, the bookmarks and history were wiped. I was able to restore using a backup saved on the computer and continue as normal (aside from losing some Cookie Clicker progress, reinstalling Tampermonkey userscripts, and redoing browser extension settings) but now there's an issue with trying to backup firefox data.

Issue: Trying to back up my firefox data leads to a "There was a problem backing up. Try again in a few minutes."

When going to about:config and typing browser.backup.backup-debug-info, I get {"lastBackupAttempt":1786243812,"errorCode":9,"lastRunStep":13}

When looking at Broswer Console, there is an entry saying BackupService: Could not create C:\Users\USERNAME\Documents\Restore Firefox\desktop.ini: NotAllowedError: Could not write to `C:\Users\USERNAME\Documents\Restore Firefox\desktop.ini': failed to open file for writing (NS_ERROR_FILE_ACCESS_DENIED) BackupService.sys.mjs:4116:23 but I don't know how to address that.

I want to move my whole folder and to backup and move it to a new PC. But it says when moving a file called activity-stream.discovery_stream I need a permission from myself.

I pressed the backup button to backup my firefox stuff before switching to linux, and now that im on linux the file i was given a docx file, is completely unusable to restore anything, meaning that about a dozen of my accounts are completely lost, I did not do anything to the "backup" file besides put it into my google drive.

For some reason, firefox keeps asking me to backup my info to "get ready for windows 11" [see attached image]. I have back ups disabled, I don't want to have firefox back up my information.

I click the [x] and it just comes back with every new tab.

Stop. [Expletive]. Harassing. Me.