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So before few days firefox decided to automaticly update. after thet no pasword was saved in system. undery system data 2 files: logins.json-1.corrupt/json-2.corrupt without any data in files (but size is 130KB). i need these logins ASAP.

I’ve been using Firefox for months without manually creating a profile (I assume one is created by default). I had a lot of bookmarks, and today I accidentally created a profile manually, but then deleted it after noticing it didn’t have my bookmarks. Now, even after deleting it, I still don’t have my bookmarks, and Firefox keeps creating profiles for me. I checked backup files, but I can’t find anything, or maybe I don’t even know which folder I’m supposed to look in. My browsing history is gone, and I think I also lost my saved passwords or usernames for websites I used.

I’ve already tried using firefox.exe -P and checking %appdata%\Mozilla\Firefox\Profiles\, but my bookmarks aren’t in either of those folders (.default or .default-release). Honestly, I really don’t want to believe I could have lost everything that easily.

I even used Recuva to try recovering files like places.sqlite and checked the bookmarks folders in the only two directories where those files existed, but it was pointless. Honestly, I still don’t even understand how everything got deleted just from manually creating a profile. I really didn’t expect something like this to happen.

Randomly my firefix just get loggedout and when i immediately logged it in again using mozilla i cant see my bookmarks my other accounts my profiles and all my groups and other information it was like i had made a fresh account all my data is lost what to do ? PLZ help i really want my data back i have been trying to get my data. Working on it for last hour.

I was trying to change my password because Firefox was acting crazy and would not let me log in, and everything that I have saved in my collections are now gone, which are 6 years worth of sites that I have saved. Is there anyway I can get it back? I'm on a Android 16 Samsung Galaxy S23 FE.

Running v150.0.3 on a Windows 10 PC. I have (HAD) 5 windows open with about a dozen tabs in each one. Just realized that one of the windows is gone! Every time I startup Firefox, I always allow it to automatically update the version. I have a bad feeling this missing window issue happened during the most recent update (last week?).

Has anyone ever experienced this issue or have any ideas how this could have happened? Any chance of recovering that window? I have weekly backups of the SSD containing all my Mozilla files & folders (Firefox and Thunderbird).

Thanks

I lost all my data after installation of new firefox. I have lots of important data in that profile.

I forgot the password to sign in and when I reset, a new profile was created for me and all my data are gone.

Now, I even know the original password. I did not know, I will lose my data. How can I get my data back? Please help.

Bonjour, A l"allumage de mon ordinateur,ce matin, quand je clique sur l'icône "Firefox", une fenêtre sans mes onglets d'hier C'est une page m'invitant à télécharger Firefox. Je n'ai plus accès à mon historique et, n'ayant plus accès à mes mots de passe, j'ai du mal à ouvrir mes sites préférés. Merci par avance de votre aide. Annie Le Drévo

Windows 11 Firefox crashed on opening continuously so unable to safe open etc. Did update intel graphics to no avail. Uninstalled in add programs in settings. Did not choose to delete data. Reinstalled and now can't find my profile.

Change my password word try to open from apple app keeps coming up. Down load was interrupted why. Also before I change my password word this was coming up as me 55npst5p6d Lost all my browser history an book marks can I get them back?

Everything I had saved has gone. My passwords for at least 12-14 years all the shortcuts to everything I had have gone. Even my saved recovery key has gone. Cannot even recover to an earlier time. I have been with you for donkeys years. I am absolutely heartbroken

I updated Firefox a few minutes ago and closed everything to let it finish. When I reopened it, all my bookmarks were gone. I checked the restore option in the Bookmarks menu, but only today's date was available, and clicking it did nothing. I found the bookmarkbackups folder in my profile directory, but there's only one file—859 bytes, which is basically empty. I'm signed into a Firefox account now, but my bookmarks aren't syncing from the server, which suggests they were never synced. Is there any way to recover them, or are they just gone?

I AM HAVING THE SAME PROBLEM AGAIN, I HATE HAVING EVERY SINGLE ONE OF MY TABS DISAPPEAR WHENEVER IT CLOSES WEIRDLY AND I LITERALLY CANT RECOVER ANYTHING, AND IT GIVES ME SOMETHING NEW, WHAT THE HELL EVEN IS THIS FIRST FILE, I HAVE NEVER GOTTEN THAT JSONLZ4 FILE E V E R!!! AND WHEN I TRIED TO DO THE SAME METHOD OF REPLACING THE FILES WITH ONE OF THE OLD RECOVERY FILES LIKE IN MY OLD QUESTION, IT DOESNT FUCKING WORK, SORRY TO SWEAR BUT ITS UTTERLY RIDICULOUS DUDE!!!

Without thinking I uninstalled Firefox on my android. It appears I didn't have an account set up or had synced my bookmarks and open tabs. Is there any way to get them back? 😞