Firefox Community Forum

I lost power due to the power company changing my meter and firefox probably updated while I was working. I come back, 16 years worth of bookmarks are gone, my quick click tiles are gone my browser history is gone too. I don't know how to get it all back.

But on my other pc the only stuff gone is from the past month of two. I specifically made a firefox account to AVOID something like this and it happened anyway!

Hello!

I'm a daily user of firefox and for years I've used the pinned tabs to save my current videos, websites, whatever so I can watch later. Never had any major problems, if I accidentaly closed a firefox window with the pinned tabs while having another firefox window opened, I would just "Restore previously closed window" and get all my stuff back. But now, from yesterday night 2025-08-31 to this morning 2025-09-01, I opened firefox on my PC and my tabs were not there, there was also no option to restore the previous session or window, I simply lost all the stuff I had stored.

I perused the files in the dir `sessionstore-backups` of my profile and they are all from this day, not from the previous day.

Is there any way you guys store those backups from previous sessions when syncing my data to your servers? Can I recover these at all?

Cheers

Hello, after changing devices, I had to change my Mozilla password because I could not access my password manager at the time. When syncing, I realised everything had disappeared. I still have the old password, have changed it back to the old password, is there anyway for me to get my data, I have no copy of my bookmarks or history or anything?

Today I find out that was logged out of my Firefox accounts. it happends few time this week. When I tried to log in, I found that all my passwords were gone. The logins-backup.json file is empty. after i restore firefox account synchronization happened and I'm afraid that I lost all my passwords. so What can i do?

Hello Firefox Team,

On May 26th, I reinstalled Windows 11 and attempted to log into my Firefox account. Since I had forgotten my password, I had to reset it. After logging in with the new password, I noticed that all my previously saved logins (over 100 entries) were gone.

I understand that Firefox Sync encrypts data and that resetting the password might affect previously synced information. However, I’d like to confirm whether there is any way for Mozilla to help me recover these lost logins, or if they are permanently deleted after a password reset.

Any guidance or confirmation on this matter would be greatly appreciated.

Thank you, Himash Ravihansa. My Firefox Account Email - himashravihansa@gmail.com

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?

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?

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.

I thought that synchronization would save my data so that I could prepare my PC for reinstalling Windows. As a result, after all the procedures and installing the Browser, synchronization does not restore my data. It's very disappointing. And the history of old sessions is completely erased.

I've been trying to get this computer to work. The last time a clean install was done a few days ago Firefox immediately remembered my favorites, extensions (or one important one of them) and the configuration of the browser.

Thanks for your Help

p.s. I sense there are changes at firefox. is there something I should know?

Hi there,

I know this is dumb, but I cleared my iMac's cache and nuked my entire history, password and bookmarks. This is catastrophic :( Can you please assist with any steps that may be able to allow me to recover this data? I have icould and it's synced, and I have a Firefox account but I cannot seem to find any way of restoring or accessing some backup. Please advise. Thank you!

Marcus

I have to do a clean install of Windows, how do I save all my firefox bookmarks and passwords as well as Thunderbird addresses and any other info I might want to import back into Firefox and Thunderbird once I've installed windows again.

I'm not sure I have the right topic as I didn't see what I will try to say. The problem is when I send an email (googlemail), I cannot insert a photo/picture in the email. The only thing I can do is attach which I do but want it inserted too. This only started happening about 2 weeks ago. It is now to the point where I have to use another browser to get it to work as it should. Any ideas why?

So.... I ended up getting a new laptop and I signed in on my mozilla account and it turns out I have lost everysingle bookmarks/saved stuff / passwords etc....

Now... the thing is I do not have my old laptop anymore cause it doesn't even turn on.. I did not make a backup cause I thought all this information is saved online...

What do I do now to get my old stuff back???

Thank you

Dear Support Team

I hope this message finds you well.

I am reaching out to report an issue I am currently facing. I recently changed my device, and upon attempting to sync my Mozilla Firefox account on the new device, I noticed that all my data—including bookmarks and saved passwords—appears to be missing.

Please note that my previous device is no longer in my possession and has been formatted, so I no longer have access to the original data.

I would greatly appreciate your assistance in recovering my data and saved logins, as many of them are not stored in any other browser.

Thank you in advance for your kind support. I look forward to your response.

Best regards,

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.