Diễn đàn hỗ trợ Firefox

i got an update message and restarted firefox. now all my saved bookmarks and passwords for accounts has disappearred. how do i get them back? under settings, it doesn't give me option to import from previous firefox

My bookmarks suddenly disappeared. I tried to use the troubleshooting guide for "My Bookmarks have Disappeared" bold textbut when I click on <Manage Bookmarks> step nothing happens. Also, when I click on the star to make a bookmark, nothing happens.

SUBJECT: Profile missing after update to 146.0.1 

After the last Firefox update (146.0.1), I can no longer access my profile that included bookmarks, history and passwords.  

After the update was done on 12/19/25, I was given the option to choose between my original profile and a newly created one. The next day when I opened Firefox, there was only one profile shown and my original profile was gone. I have read numerous fixes for this problem but nothing seems to work.

I have done the following to try to locate my missing profile to no avail. 1. I went to the Profile Manager but the only profile listed was the newly created one. 2. I didn't do a refresh so there was no "Old Firefox Data" folder to copy the data from. 3. Used about:Profiles, Again only the newly created profile was listed 4. I used ~Library/Application Support/Firefox/Profiles. Still no luck. 

Could my profile have been moved to another place or could it be hidden? Any help would be greatly appreciated!

Over the last 5 or 6 months, Firefox seems to have lost the capacity to remember my open tabs if my Mac is forced to restart. These open tabs are vital to my workflow. If this can't be solved, I shall have to migrate to another browser, which is something I do not wish to do.

My Firefox version is 147.0.4; my computer a Mac Studio 2025 M3 Ultra; my OS Tahoe 26.3.

Please advise.

My entire Firefox account has disappeared, bookmarks, passwords, email, history, everything. I shut down my Mac Airbook when I left town Tuesday, powered up when I got home today and when i clicked on my Firefox icon at the bottom of the page, a new, unrecognizable Firefox page appeared asking for a signon rather than my default page, my email. Can you help me recover everything? Lloyd