I-Firefox Community Forum

Dear Mozilla Support Team,

I recently had to reset my Windows operating system. After reinstalling Mozilla Firefox, I attempted to sign in to my Firefox account. Unfortunately, I had forgotten my password and had to reset it. Although I successfully signed in after resetting my password, none of my previously synchronized data, including passwords and bookmarks, appeared.

I had performed a synchronization before the reset, so I expected my data to be restored upon signing in. However, this did not happen, and I am now unable to access my important passwords and bookmarks. Could you please assist me in recovering my data? I rely heavily on this information for my daily activities and would greatly appreciate any help you can provide.

Thank you for your support.

Best regards,

Hi,

I have used Firefox for a long time. I have many bookmarks, passwords etc on Firefox on my original PC.

Sadly the hard drive on my original PC has failed. I borrowed a laptop temporarily and signed into Firefox on that. My bookmarks did not transfer across and instead I had someone elses bookmarks but I wasn't too concerned as I was only borrowing the laptop.

I now have a new PC. I have restored my files from a backup external drive and I have signed into Firefox on this PC. However, all of my tabs and bookmarks have not come across. I have pressed sync but it has brought the bookmarks over from the laptop and not the bookmarks from my original PC.

How can I sync to the original PC that has all my bookmarks etc please? Or have I lost it all forever?

Thank you.

For years I had my Firefox sync working fine between Win10 PC, Android and several Win10 laptops. However yesterday I installed Windows 11 on the same PC I have Windows 10 (bought new disk) just to have a fresh install. Started with installing firefox - and here when problems begin. It couldn't let me log in into Sync, I was being immediately logged out ("Account disconnected"). Somehow I managed to log in, but then all my previous data was erased (passwords, bookmarks). I thought ok, maybe later it's gonna sync. Started installing extensions, saved one password. When trying to sync tabs with Android phone it didn't work, it couldn't see any tabs (but it could share tabs between devices!). On Android I still have old passwords and bookmarks saved, same as on old Win10 (on which I got logged out). Alright - it didn't sync after restart so I removed Firefox profile on machine, started again with logging in - and it synced only ONE password that I saved previously on same Win11 machine, with extensions I freshly installed back then. So it saved to sync improper data, forgetting about old? Logged out from all of my machines in Firefox Account. Now I'm back to my original machine on Windows 10. And what? I can't log in! Same error as on Win11 after install - "Account disconnected". Checked about:sync-log and found error logs - pasted into "Troubleshooting information" of this post.

Thanks

My computer died today due to water damage, which means I can't turn it back on again. I got a new computer, I've looked all over the Firefox support websites, and can't find a solution as to how to get all of my Firefox data onto this new computer. I tried the profile page, but it looks like a profile for my old computer's Firefox never even existed. I have no idea where to find any of my old data.

I'm attempting to set up sync between my windows laptop and my new android phone. The phone has firefox loaded, allows me to pull up the 'sync and save your data' page, allows me to choose 'ready to scan' and presumably successfully scans the QR code displayed on the laptop (the laptop prompts me to approve the new device). Then the laptop indicates I need to wait to approve it on my phone, and the whole process stalls. The phone continues to display the mostly blank white screen with only the "moz://a" at the top and the spinning blue circle in the center. Eventually the whole thing seems to time out and I receive an error message on the laptop saying "websocket unexpectedly closed" and "device pairing failed".

My two hypotheses are that either still having my old phone (which is being retired to at-home use only, and I'd rather not de-sync) still synced is somehow interfering (seems unlikely), or that something about the new phone's software is interfering in the sync (seems unlikely and way out of my league in terms of troubleshooting around).

Help please?

Hello,

Earlier today I reformatted my device but when I logged in to firefox I can only see my history is getting synced my bookmarks are empty, I've checked and bookmarks are check off and they should be synced. How do I get them to sync? It has worked fine in the past. Thanks.

Hello,

I have a firefox Account "accountA" which has the primary eMail-Address "mailA". I had an other Account "accountB" with primary eMail-Address "mailB" and secondary eMail-Address "mailC". Sadly I lost access to "accountB" and it's primary Mail-Address "mailB" (which is ok) but want to change the Mail from "accountA" to "mailC".

However, this is not possible since "mailC" is locked to "accountB" which I can no longer access (since I need the primary Mail Address. This meens I can never again use "mailC" for my Firefox account, which is now my primary Mail-Address. Is there should be a way to disconnect a Mail-Address from an account, if one has ownership of this Mail-Address?

Sincerly Robin

Hi Guys, I'm having trouble logging into Firefox on any of my devices even though i can pass all the password & security steps. When logged in, it asks me if want to connect any other devices then immediately logs me out.

On my main laptop i have all my bookmarks & passwords working but am not logged in, but i want to replicate this on another laptop.

Any ideas?

Sam

I have profiles on desktop , i had enabled sync in all profiles when the feature was first introduced. the account icon always showed that it is syncing , but in the sync tab , no visited tab list appears of any profile in both the desktop .,, i installed firefox on the android today to check synchronization but its tabs never show in desktop profile and the android tells last synchronization never....neither the desktop tabs appear in android history

Sorry to have this same issue again, knowing full well it can happen after finding this some years ago (https://support.mozilla.org/en-US/questions/1319823), I tried to carefully connect two older PC devices back to firefox sync, however on one I managed to enable sync before disconnecting my profile (it seemed as if reconnecting sync temporarily was the only way to disconnect a profile from firefox's UI - I should have been more careful and removed the profile from the filesystem level): at which point I polluted the sync server.

I've noticed that `about:sync` has an option under bookmarks/engine actions 'wipe bookmarks', which sounds exactly what I need, and if I watch what happens once pressed it does the right thing and repopulates the sever with the 'correct' PC's bookmark set (when run from that PC), however it also says 'other devices will act like a reset', which i'm finding NOT to be the case: eventually one of my other device repollutes the server with bad bookmarks which propogate.

I'm thinking the culprits are my phones, If I wipe and do a sync on a phone, my phone's bookmarks stay polluted. If i'm right about that, I think my question is: can I wipe my profile (or preferably only my bookmarks) from my phones' Firefox without having to entirely uninstall/reinstall (or do you have any other advice for not re-polluting the server from some already-polluted device's bookmarks?

thanks in advance

I have an email account blocked (jgcaller129@gmail.com) and have tried the sync tab at the top corner of my computer. It sends a message with a number to this blocked email to unblock it- how am I supposed to get an email from you on a blocked account. How do I unblock this account. I have tried several times with the same result now the icon to sync isn't there anymore. PLEASE HELP This email is very important to me. You can send a reply to an alternate email account (also linked to Firefox -jgcaller15@gmail.com).

So recently I had reinstalled windows and reformated all my drives, I am also sure that this account is my only firefox account. But when i checked the sync data it shows only 1 sync data which is today 14/3/2025. I am also sure that I had left all my sync data as default therefore it should have automatically sync. But currently I do not have access to my bookmarks, etc

Is 'Sync Firefox data' a way to 'back-up' your browser?

(ie: Can I retrieve all my urls even if I change my iMac (etc) to a later one?) Is 'Sync Firefox data' the way to do this?

Thank you.

Hi,

I changed my password in my Mozilla account and now I can no longer sync my firefox for android.

I scan the QR code and on my android screen proceeded normal and asking me to confirm but in my desktop I get an error.

"General application error Something went wrong. Try again later."

I also tried in safe mode with no luck.

What to do now?

Hi, I switched to a new phone recently, and wasn't able to outright sync all of my open tabs from the old device. It was, however letting me access them from the tab menu on my new device, so it wasn't a big deal.

Now I can't see the other phone in the tab menu, just the sync from my PC. I don't have the old phone anymore, because it was a trade in for my current device.

Is there any way to get my old tabs back? The sync must have timed out, because there was no activity for a period of time. I have Firefox synced on all of my devices.

Thank you.

I had issues with my computer which got me into a situation where i had to delete all partitions of my drives, starting from 0. Signing in my firefox account in a fresh win install suddenly recovers NOTHING and i am now panicking as i had very important accounts & passwords, bookmarks, tabs, extensions, etc. I have tried other devices too without any luck. I need help recovering all these asap.

Due to a recent major security breach I started changing all of my passwords on my main desktop, I did not have sync on at the time. I then opened up my work laptop (again unsynced) and decided I should really use the sync feature to transfer my 500+ passwords onto my laptop for when I travel.

When I got home that evening, I turned on the sync feature on my main desktop, unfortunately it pulled all of my compromised passwords from my laptop and overwrote the ones on my main desktop. Is there anyway to restore my pre-sync passwords and ensure that they get transferred to my laptop instead please.