I-Firefox Community Forum

Firefox was crashing so I found the folder in C:Program Files and renamed it before a new install. I downloaded the new Installer and installed Firefox again thinking all would be saved, but now, my bookmarks are missing and the history from the last few weeks are gone and started with the date I re-installed it. I have an old AT&T email that is now Yahoo and been using it for years. I tried to log in and I get a different screen asking about an ID which I don't have. Firefox always launched showing this icon to start yahoo as well as Chase Ect...ect and all are gone.

Is there a way to point to the old folder, after changing it back to original name and get back to previous version?

I did find another Mozilla file under Users,ComputerName,AppData, Local. I don't know if it was created with the new install or there before and just updated because I renamed the first file I found and now it's using C:Users to start Firefox. Any help getting back to where I was is appreciated.

Thank you

Tony

Hi, A few weeks ago, I wanted to sync my open Firefox tabs between my old laptop and my new one. I signed in to my Mozilla account on both computers, and the sync process worked just fine. For weeks, my synced tabs appeared in my Firefox sidebar on my new laptop, and all was good. However, the other day, I had to restart my computer a few times, and when I open Firefox again, my synced tabs were gone. On my Mozilla account page, it still says that I am signed in to my old laptop. How can I see my synced tabs again? Thank you very much for your help!

It's a bit weird, I got the thing you get when you migrate to a new browser - asking if you'd like to migrate history and bookmarks. I closed it because I've used Firefox for years.

When Firefox opened proper, I got a tab asking to restore the previous session, along with a "Welcome to Firefox" tab. As well I got a few popups for other things, basically just stuff you see when you open Firefox for the first time. A couple of extensions opened up a landing page that should only open when you first install them.

All my bookmarks and browser history is there. The settings have all been reset to default. The extensions are there but all of their storage seems to be gone, like my dark reader extension no longer has the exception sites on it. Ublock has the ad count reset and most importantly all my custom rules are gone! I have spent years making hundreds of custom rules, and quite a few took hours to get right. I am sad about losing that.

Does anyone know what might have happened?

When I was looking at my about:config to see I saw these things in the modified settings.

there's quite a few settings here and IDK which are relevant. The ones in the pictures where just the first couple and I show them because they seem to have something to do with this situation "auto migrated" - when it seems like the browser did this because it thinks it migrated, the first screen I got was asking if I'd like to transfer my bookmarks and history (and good thing I closed it,or it might have deleted those too).

HELP !!! I received an error notification "platform not compatible" . I reinstalled browser as recommended I lost all history , bookmarks and passwords. How can I recover lost information ?????? Please Help !!

Hi everyone...

After I "upgraded" to Windows 11, Firefox suddenly quit working. After reinstalling, it worked again...however, I had to use the "about:profiles" command to restore the bookmarks I had. That worked fine. But after a series of cascading Microsoft 365 app failures, I decided to roll back to Windows 10. Yay! Everything worked again!

Except Firefox.

So, I reinstalled Firefox again. And once again, the bookmarks are missing...but this time, the "about:profiles" command isn't locating what I need.

Any suggestions?