Firefox Community Forum

Hello, after installing a new hard drive (the old one died and I couldn't recover the data), I reinstalled everything on my PC, except that a friend recommended installing Arium (Windows 10.8 LTS). It works fine, except that now I have no way of connecting my Mozilla account to Firefox to recover my passwords and other saved tabs.

I've searched a lot, tried several installations, and even installed a previous version of Firefox, but nothing works...

Do you know why? Is it because of Arium?

Thanks

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'm attempting to set up Firefox in a newly installed OS and have logged into my Sync account. Many aspects seem to be loaded in, but the status via the Settings is stuck at "Syncing..." despite waiting several hours. Quitting Firefox results in a crash window popping up.

There are no files in the weave/logs directory. The weave/failed directory has multiple json files; most almost completely empty. addons.json has an ID, but that's pretty much it.

Deleting the .mozilla directory and starting over yielded no change in behavior.

Any help would be appreciated. Thank you.

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.

I'm trying to get my wife's firefox browsers synced - mainly her laptop and phone. I've got the phone signed in and working fine, but on her laptop there's no option to sign in and the sync option is missing from the settings menu?

It seems to be profile related as if I create a new blank profile the option is there - but if I copy all the data from her original profile the option goes missing again. Short of manually copying all her data over, I'm a bit stuck for what to do next - any ideas?

I've tried disabling any addons, restarting in troubleshooting mode etc. I've also looked at all the other solutions I can find from here (mostly related to group policies, there's nothing enabled on this) and everything seems as it should be.

I haven't tried reinstalling, but it seems like this is a profile issue rather than an installation issue?

It's a Win 11 laptop (upgraded from W10 if that makes a difference), FF version is 135.0 64 bit.

Thanks!

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?

Recently had to get my phone repaired and did a backup beforehand (and Firefox sync was on) but when I restored my data Firefox was empty, all tabs gone. Is there any way to get them back? And if not, any way to prevent this in the future? (I did look into my history, there are no previous tabs closed)

Thank you in advance!

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.

Dear Support,

I have two laptops - both identical accounts signed in and would like to sync them so that when I open Firefox on laptop 2 it will show me Firefox on laptop 1. and if laptop 2 was last used, then when open laptop 1, it shows me Firefox on laptop 2.

currently it is separate and unique instances.

how do i automate the sync?

thanks, Nicholas

I installed firefox on other PC and I logged in with my account. Despite having synchronization for passwords, bookmarks, etc., I can't sync my data on my new PC. Why is that?

Running Win11 on desktop PC. Sync option offers QR code to scan but Firefox on android does not have sync scan option on settings. Despite instructions to contrary, that option is not listed on mobile. Yes I'm logged in and yes I have synced previous versions of firefox

I set up sync, I went thru my old passwords on my Mac browser Firefox and deleted many old/dead ones, expected to see the list on my iPhone Firefox browser to match. Signed in properly on both, pressed sync several times each time showing complete.

I'm still seeing PW's I deleted on my Mac in my Iphone's list...

What could be the problem? I have uBlock Origin ad blocker installed.

Thanks

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

Hi, I'm new to asking the Firefox community a question, but I hope you can give me directions to solve my problem:

I currently have Firefox v. 78.15.0esr on an iMac (early 2008) running OS 10.9.5.

I know that version has been unsupported by Mozilla for a few years, but I still want to keep this computer alive after I install the latest Firefox version to the newer (refurbished) iMac M3 2023 which should come with OS 14 or OS 15.

I hope that downloading the latest Firefox for Mac version off your website should be pretty straightforward, but what I really need help on is how to bring my Profile residing in the Library/Caches/Firefox folder on my older iMac to become my Profile on the latest Firefox version on the newer iMac (while still keeping my older iMac).

Appreciate the help.