Firefox Community Forum

So I reformatted my hard drive and everytime I finish I reinstall Firefox. I have an account where I log in and it put me back where I left off with all my past bookmarks that I saved. Ive been doing this for 10 years but today not sure whats going on but when I logged if all my stuff has disappeared. Please help or contact Mozilla regarding this. I cant understand why one cant directly speak to the ones who developed this browser. Quite frustrating

AL

I believe I had all this synced in Firefox Settings before I made the upgrade. Like all you fellow former users of Windows 10, I had to upgrade to Windows 11; and did so two days ago. Now, I found that I do not have under History any of the former sites I not only visited but also had tabs open. What can I do, if anything, to recover them? Under the Add-ons Manager, if this helps, I already had the app Tab Session Manager, but don't know how to use it. Thanks to all in advance who may have made this same upgrade. Many out there are still on Windows 10.

I got a new computer. The old computer is inaccessible. When I downloaded Firefox on the new computer, I could not remember my password and had to reset it. Now all of my synced data is lost. Is there ANY way I can get this information back? I absolutely need the bookmarks on my account to be able to pay bills, and i had no idea changing my password would cause the synced to be lost.

I have a rather strange problem and I'm not sure this is the right topic. I generally use my computer on and off all day and I never lock it until the evening when I turn it off. I went out for several hours today and when I came back there was a new version of Firefox installed. When I opened Firefox I realized it was a new version because it would not let me logon until I had completed a profile. My old version never did this. In addition all of my saved passwords had disappeared as well as my bookmarks. I'm using a Dell laptop running Win 11, about 2 years old. I don't understand how this could happen. There was no one here while I was out. I looked to see if there was a saved profile but only the one in use showed up. The current version appears to be 145.0.1. One thing that might have something to do with it. I might have been asked yesterday if I wanted to synch firefox on my computers but I'm not sure how I answered this (I'm almost 90 and my memory is a bit imperfect).

I do have Firefox on a second desktop which is running Win 10. Is it possible to use that profile. That computer has not been turned on since this happebd and is currently asleep. Any help or suggestions will really be appreciated!

All my firefox bookmarks disappeared on my desktop even tho' logged. Still on phone and laptop. How do I sync so I get them back and not erase the two mobile devices?

I have rebooted my computer and when Firefox is restarted all the bookmarks in the bookmark toolbar are gone. I have Firefox set to sync these bookmarks on all devices and am concerned if I just initiate a new sync then the bookmarks will be deleted from all other devices instead of reloading them all from the Mozilla server. How can I force a reload of all sync'd bookmarks from the Mozilla server to my Firefox on this computer?

I have had a firefox account for the past 1 year I have browsed a lot of sites in that 1 year and had a few bookmarks too. I used to regularly sync the account too. Today after a normal browsing session I closed firefox. After I opened it up again it had automatically signed me out. When I signed back in, I saw that my whole history had been wiped, everything from the past 1 year. Now there is no trace of it. Please tell me what might have happened. Everything is gone. I can provide my account name and details. Please help

I wanted to open firefox and a new window for new firefox open but did not suggest me to sync my old bookmarks. instead it only asked me if i wanted to sync with chrome browser only. why was i not allowed to save old bookmarks before new firefox updated.

Dear Firefox Support Team,

I am writing to urgently request your assistance regarding a critical data loss issue with my Firefox account.

Recently, I reset my Firefox account password because I could not remember the original one. However, I was not informed or clearly notified during the reset process that resetting my password without a recovery key would result in the permanent loss of my synced data, including saved bookmarks, passwords, and other browser data.

Unfortunately, this Firefox account was the only place where I had stored this important information, and I had no separate backup of the data elsewhere. I understand that for security and encryption reasons, data cannot always be recovered—but I believe users should be more explicitly warned during the password reset process.

I was signed out from my Firefox-Account on my PC for no apparent reason. I reset my Firefox Sync Password today and when I checked my saved passwords they were empty. In my profile folder there is a logins.json.corrupt file which probably contains all my saved passwords. How can I recover them and why doesn't Firefox sync them back like it's supposed to?

Thank you.

I used the new CleanMyMac and the think has removed the passwords from Firefox on my iMac. I still have them on my iPhone in both Lockwise and the Passwords app. Sync doesn't seem to alter anything. Anyone know a way to re-establish these in the iMac's Firefox?

Thanks.

A.

Hi,

I can't seem to retrieve all of my Firefox bookmarks or passwords on this new mac laptop. My other (mac) one fried. I thought everything was saved on Firefox.  Tried to sync from phone (android) too. Therefore, I'm having a hard time logging into certain accounts, which I depend on Firefox for my saved passwords. (evidently that is a thing of the past and I will now write all passwords down in a safe place. Also does anyone know why when I scroll on my mouse I have to scroll up, in order to scroll down, more importantly how can I change it back. This is a new glitch. and I'd rather not get used to it! Please help if you can.

Thank you, techno dummy Noel lol

Hello Firefox team,

I did update my Mac to IOS 26.0.1 and I have lost all the history and bookmarks, I have the "Sync" enabled with my browser.

All my important data has been lost, can you please look into this and help me please.

Thanks, Sajeel Irkal

I know the system backs up bookmarks every day or so. I want to migrate all to a new PC. With a new Laptop it seems to have done so automatically, maybe through synchronize feature, I am not sure how I did that . I normally export bookmarks to a external flash drive as HTML. Just did also to a .json file type cannot find how to do that. Which format and method will be best? Have all of the old PC backed up through Acronis full back up. Will that have the full Firefox program with the bookmarks?

I last sync my data on 31, August,2025 and delete all password from the device now I only have my passwords and bookmarks etc all data sync to Firefox account. And today I tried to login back to get my passwords, I forgot the Firefox account password and reset the password by clicking on forgot password and reset my account password. But my all synchronized data , passwords, filling forms, bookmarks all gone and I had nothing left. Kindly give me my data and passwords back and if you need any verification from me that it's original me person. Kindly cleanse give me a backup of password as I really need them. My all PhD thesis , all data there and I didn't remember any passwords. What to do now. I am very much depressed please help me out

I recently logged back in to my Firefox account that I hadn't logged into in about 3 to 4 months and all my passwords and links in the sync part are completely gone that took me years to setup. Is there any way of recovering them? Where did they do? I am positive I did not delete the account sync information. I would greatly appreciate any help in this matter.