Diễn đàn hỗ trợ Firefox

After Windows crashed, I installed a new system and logged into Firefox using my account. But all my history, passwords, bookmarks were erased. I also went to my phone and everything was gone. I didn't erase anything myself. Is there any way to restore the previous state of the account? Are there any backups on the Firefox Sync server?

I was using my account for sync my bookmarks, but i hope that was saved in my phone. After check CCleaner deleted all from my laptop, i realize that was also deleted from my mobile. ¿How i can recover all my bookmarks that was sync in my account?

Hello there. I had to recently wipe my computer on 4/12/2025. I forgot to sync my bookmarks and passwords. Is there any way I can possibly get these back? I don't know how far back Mozilla itself keeps files, I've been told they do but I'm not sure how far back.

I am thinking about trying sync now that I have both a Windows and Mac computer. Each has a different set of bookmarks, so let's just look at that.

I create an account. I set up sync on my PC. I then sign in on the MAC. What happens to bookmarks?

I would hope that the first time the PC bookmarks are made identical on the MAC. Then, regardless of which changes in the future, the additon or deletion or d=editng of a bookmark is echo's on the other device.

Is my thinking right? Can I force thePC to be the first accurate listing of bookmarks? And everything else I choose to sync?

Thanks.

I have always been logged into Firefox and I know that I had updated my bookmarks but recently I have re-installed my Windows and after logging into firefox all my bookmarks are gone. I don't have a html file and I can't 'upload' them manually.

I was hoping that they would be automatically updated after sign in... All I have are default bookmarks and the last 'sync' is showing today, which is after I re-installed Windows... Is there any way to get them back?

Any advice?

My primary PC died about a month ago, and the SSD is fried. I had it synced to both my phone and a secondary one, so no problem accessing things. I bought a new one online, and it just arrived. Then, when I tried opening all my tabs on my new PC, I found that they were no longer available, on either that one, or my other devices. This is new, because I had already recovered a few individual tabs to my phone previously, but I hadn't thought to open all 50-100 of them then since I was waiting on a new primary laptop. The device still shows up among the connected services on my account, but it doesn't show the tabs anywhere I could find, and since the SSD doesn't work I can't go into the files and manually port them over. Is there a way to solve this?

Hey I changed my password before reinstalling the Windows but when I reinstall Firefox and logged in, all of my information was gone since Firefox doesn't back up after password change so I uninstalled Firefox since then because it was useless to me. I was looking through my files and I find that I still have the previous recovery code before changing password, can it be used to recover my passwords and bookmarks?!

Hello, I just wiped windows and lost my bookmarks, passwords, and the like. I looked into the support options, as well Firefox profiles (about:profiles) but can't seem to get that data back. It's odd to me that it didn't sync because I also wiped windows last month and it recovered all of my data as soon as I signed into my Firefox account,so I was hoping that would happen again.

Any way to get this back?

Thank you.

Hi, I had to reinstall my windows where I thought my Firefox would sync up upon reinstallation. However, nothing would sync up and the best I could do myself was to import pretty out-of-date Chrome data. When I to my firefox account and scroll to connected services I see my last PC name with its firefox login. Is there any way to recover that data and import to my current device? I read you kept sync data as encrypted data on your Mozilla servers, so I hope that's a viable solution.

i reinstalled windows and re downloaded firfox i logged into my firfox account like a normaly doo to get all my data but non of my data is getting synced it always works but it is not working no i need my data i have my passwords to all my account on it pls help

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

So I had logged into this Firefox account, but while I was, I forgot my password. I needed to enter the correct code from the email, but I lost the recovery key; I needed to enter in the 2FA code from my phone, then I could now change the password. When I logged in, boom, bookmarks gone. Passwords gone, and browsing history gone. I was waiting for it all to sync, but it had probably synced the deletion of everything possibly. I have no idea what happened, but I do not believe my account was compromised, because I did not get any emails about any new logins. If it is encrypted, how can I decrypt it so I can get my stuff back? Thanks.

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

Good afternoon, I restarted my windows computer because it was buggy and right before reinstalling I synced the Firefox account so that whenever I reinstalled Firefox in the PC once more I could have all my bookmarks.

Now while setting up, I find out none were synced? It doesn't appear and obviously I don't have access to the "old" browser to manually download the html file. This was weird because last time I downloaded Firefox in another device and logged into my account it automatically synced and configured everything as it was.

Please advice if there's any way to restore my bookmarks at least because I need them for work.

Many thanks. Kind regards.

After installing Mozilla on my mobile phone and syncing with my laptop all my bookmarks and history are GONE from my laptop. When attempting to restore them, following your suggested instructions, no dates appear when clicking the restore function. Deleted Mozilla from my mobile phone, still no good. Do I need to recreate all my bookmarks again?! How? When attempting to bookmark a new site it does NOT bookmark! No new history is showing either! Very disappointing, should I just return to windows again after years and years with Mozilla? Andrew S

Hello, Today I performed a factory reset on my laptop (Windows 11). Before i did that, I checked if my Firefox account has synced all it's data, bookmarks, history etc. was checked and I pressed "sync" button. Then performed all of the actions connected with factory reset of a windows including partition removal. After that installed Firefox, logged in, but had to reset my password because it wasn't saved within my Bitwarden. Then synced and it turned out, that there is no saved bookmarks on my account. Is there a way to return my bookmarks?

Best regards, Karol Picher

My firefox recently crashed (f5ea38ba-f4f8-4224-8ab8-982e19cc72f7) is the crash code if that helps it happened just now, i dont have any additional profiles and no folder such as "old firefox" is there any way i can recover all the information and my old settings or passwords or anything? I tried to log into my firefox account to sync up data but there was no update on the information

Hello, my computer crashed and needed a fresh install. I installed Firefox on a fresh drive, rest the password as I couldn't remember it on the first try (I now know what is but it's already reset) and it shows me 0 bookmarks, 0 saved passwords, 0 data and keeps reminding me to "finish setup" by importing bookmarks from another browser but my bookmarks were on Firefox.. After password change I was kicked out of my FF account on my phone so all the data is still intact on my phone. I haven't logged in my phone yet. How should I proceed to restore them on my pc and sync the to bookmarks from my phone and not the other way around?

Lost my Passwords on my desktop and can't recover them through profile manager, I found them on my android phone and want to recover my passwords from there, but am worried if I try and sync to the desktop, the desktop might overwrite the passwords in the phone.