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Firefox updated its version on my iMac desktop two days ago and all my bookmarks are gone. There's a message at the top that says: "For quick access, place your bookmarks here on the bookmarks toolbar. Manage bookmarks..."

All my bookmarks are gone as if they were never there. I have a My Passport Backup hard-drive but I don't know where I can find them and restore them.

So every time the browser crashed or a blackout happens and it forced closed (sometimes the browser is closed normally and it still happens) the next time i start the browser it would show the restore session page. Pressing the restore session would just restore the open tabs and not the tab groups. Because of this i would need to go to the file manager, copy the previous.json and change it to replace the sessionstore. it's kinda annoying. is this problem just me or is this a known issue? also how to fix.

Hello Mozilla Team,

I'll directly jump into - 12 years of Bookmarks and history are gone after the last update. No warning or anything. Can you help me restore? That's unbelievable.

Firefox updated and all of my tabs I had open are gone. I used those for organizing and remembering things. There's no option to open recently closed windows. No history of the tabs as a group. What do I do?

I have been using Mozilla Firefox on my mobile phone or PC since 2015. So, after so long, I found the Gmail that I used to log in to Mozilla from 2015 to 2018. Now, if I log in with that Gmail, will the previous history or data be restored or will it be Mozilla's?

I have to reload history, bookmarks, passwords each 3 - 4 days, when Firefox refreshes the software. It was not happening before, just in the last two moths. How can I fix it?

I lost all bookmarks on or about June 29, 2026 after doing a Firefox update that asked me to create a profile when I'd never had one before. I have not been able to recover them.

My Firefox crashed and one of my windows with a bunch of tabs was lost. I have a bunch of windows open for dedicated sorting of tabs (one for socials, one for videos, etc). Earlier, my Firefox crashed and it attempted to restore my session but did not restore one specific window I had. I looked in the "History > Recently Closed Windows" and it was not there either. This specific window had a bunch of work related things on it and while I can sift through my history and re-open each tab individually and rebuild it that way, that's really frustrating and time consuming. Is my window just lost now?

For some reason firefox uninstalled on my computer, I genuinely do not know why. When reinstalling it, I have an old save from my backup of that morning (I have it setup that way). However, I do not remember this password whatsoever and I am freaking out a little bit since I have information on there and I am just trying to get it restored onto my account.

Any help would be appreciated.