Firefox Community Forum

Hey, I am trying to synchronize my mobile tabs with my desktop app. Unfortunately, this is not working. I am using the latest version of Firefox and Windows 10. Any ideas how and if I can solve this problem? Thank you in advance.

I started using the new "Profiles" feature in firefox, and I created profiles one one device. However I am finding that the profiles are not syncing across my devices. Both are Windows 11 VMs, I tried doing manual syncs, singed out and back in to both devices. But the Profiles I create on each just do not seem to sync, is this the expected behavior ?

Hi! I recently lost my old laptop and I'm trying to setup my new laptop without a backup. I was logged into my mozilla account on my old browser before I lost it, but I'm not seeing any of my old tabs, bookmarks, and extensions from my old browser syncing to my new browser. Is there anything I can do to retrieve this data without having access to my old laptop? Thank to anyone who can help!

I have changed operating systems from windows to linux mint. I made sure to sync my profile before uninstalling, but now the profile looks to be empty. there are no saved passwords or bookmarks. This worked when I changed between different windows devices last year, but this time it seems stuck. I will check on a windows device when able, but in the meantime, are there any other ways to troubleshoot this?

Hello Mozilla Support Team,

I am writing to request assistance with recovering my Firefox Sync data.

I recently reset my PC and after reinstalling Firefox and logging back into my Firefox account, my bookmarks and saved passwords are completely gone. I believe the sync may have overwritten the server-side data with an empty local profile after the reset.

Account email: [edited from public] @gmail.com Approximate date of data loss: 02 25 2026

I had been accumulating this data for approximately 1 years and it is very important to me. Could you please check if there is any backup of my sync data on your servers that could be restored?

Thank you for your help.

I use an iMac (2019) and MacBook (2015) but my tabs aren't syncing between the two.

I've refreshed the syncing a few times but the MacBook is still showing two lots of tabs for the iMac, and both of them are showing pages that are no longer open.

I'd really like to be able to move between the two so if anyone has any suggestions on how to get FireFox to sync, I'd be really grateful. :-)

duplicate of /questions/1574756 thread

After the latest Firefox update (ref 025f29), my bookmarks and saved passwords are not syncing. Tried signing out and back in.

duplicate of /questions/1574756 thread

After the latest Firefox update (ref daa108), my bookmarks and saved passwords are not syncing. Tried signing out and back in.

duplicate of /questions/1574756 thread

After the latest Firefox update (ref d49f81), my bookmarks and saved passwords are not syncing. Tried signing out and back in.

duplicate of /questions/1574756 thread

After the latest Firefox update (ref c93967), my bookmarks and saved passwords are not syncing across my devices. I have tried signing out and back in but the issue persists. Any suggestions?

Hi there,

I've recently made the move to Windows 11, and since then I've been having loads of issues with firefox hanging and crashing. I've been able to correct the issue for about a week at a time by clearing my startup cache, but I did so incorrectly recently and it corrupted my profile, resulting in the need to create a new default one.

I'm able to launch firefox okay now, but when I try to sync my bookmarks and settings, firefox freezes every time immediately upon login. Is there a way I can sync my settings without using the firefox UI in order to circumvent the crashing issues present in the UI?

Hi all, Starting at the weekend or end of last week I think, when I send tabs to another device when that device is switched off then when I open Firefox on the other device, the sent tabs are loaded in private browsing windows, not the main window with my saved tabs in. Sometimes all sent tabs arrive in one private browsing window, sometimes in one private browsing window for each tab. As I can't drag private tabs into the main window this is really annoying! How can I stop this happening please? Cheers :)

duplicate of /questions/1574756 thread

After the latest Firefox update (ref 02fc63), my bookmarks and saved passwords are not syncing. Tried signing out and back in.

Hello! I try so transport my tabs in Firefox to a new PC. Therefor I try to login, to be loged in I need an email with an code (6 numbers) But this email isn´t sent. I didn´t get it, or much to late. What can I do? Thanks for your help, best regards Kurt Füchtler

I tried linking my unlinked profile to my email, I made a typographical error there and when I tried to undo it, Mozilla says this profile is already linked to that email. Mind you, I have not even entered a password or verified that email address yet. I cannot even remove that email from the profile now, even if I do and try to re-sign, the accounts page says I am already synced to the typo email.

duplicate of /questions/1574756 thread

After the latest Firefox update (ref faf23d), my bookmarks and saved passwords are not syncing. Tried signing out and back in.

I reinstalled the operating system, so to speak, changed my device. I clicked the sync button and it worked. I reinstalled the operating system and reinstalled the browser. I logged in, nothing happened. I rebooted, nothing changed. I clicked sync, everything was the same. Where are my bookmarks and passwords?

Firefox was somehow reset after windows update restart. I was trying to sign in to sync, but sign in button gets blurred/disabled, and nothing happens then. I am afraid that I lost my previous session also.

I was trying troubleshooting mode too, but behavior is the same.

Otherwise I can login to my Firefox account web, and I am logged in on my smart phone still.

Hello Mozilla. I am logged on to my Firefox account on a new computer. Although I have logged in, I haven't experienced Firefox automatically syncing my bookmarks and extensions as I did two computers ago to this last computer. I have tried syncing numerous time (pressing the sync button in my account) to no avail. What do I need to do to get this working? Thank you for your time and attention.