Firefox Community Forum

Instead of syncing my current settings, sync just overwrote them with an old, outdated copy from another device, completely ruining my addons, bookmarks and various other settings. I managed to restore the bookmarks, but is there really no proper way to undo this or prevent such thing from happening in the first place? Is there no way to control if I want to sync my setting TO the server or FROM the server? How such a vital decision is even made then and why wouldn't there be a way for a user to control that? This is so disappointing :(

The 2-year-old support page "View synced tabs from other devices" gives 2 methods for syncing all your tabs from one Windoze FF to another. Neither one does anything at all for me now. The "right-click on the device in the sidebar" sounded SO promising, but it does not cause anything at all to happen. And checking the "sync tabs" box does indeed make them all show up in the sidebar list, but does not open anything. So besides clicking on each of the hundreds of tabs listed, how can I do this, or is it just another FF functionality lost to time?

I have been trying to enable Firefox Sync on my Windows 11 PC (Firefox 145.02). I open the Firefox Sync window, I click on Log In, I enter my e-mail and click on "Sign up or Sign In" and then the view freezes and I never get any further. The attached screen capture never changes, no matter how long I wait.

My account won't sync my old passwords and browser history. I recently reinstalled windows and when I tried to sign in to my mozilla account my data wasn't there.

Instructions everywhere say to open Firefox on mobile, select the options menu, and select "Sync and save your data." However, "Sync and save your data" does not exist. I cannot sync my passwords from mobile to my desktop.

Hi,

I use Firefox app in macos, android and ipados. The bookmarks across them are not synching automatically. I need to press sync manuelly to do. All apps are updated, all settings look fine. Please help me synch bookmarks across platforms. Thanks a lot.

Hello, when I first switched from google chrome to Firefox I could not figure out how to create one browser with two profiles like I had with chrome. So I went to about:profiles and created two separate browsers not realizing you all had an option to create two profiles under one browser. I finally figured out how to have to profiles under one browser by going here https://www.tech2geek.net/how-to-use-the-new-updated-profile-manager-in-firefox-2025/#google_vignette but I can not figure out how to sync the google chrome profile that I had previously to this new profile under the same browser. How do I sync this? I hit sync and nothing changed. I am signed in and I can not figure out how to get the browser profile to sync with this new profile under one browser. I really hate how Firefox named both of these Profiles because it is extremely hard to explain this situation.

I had a previous account with firefox on a different computer and attempted to login on a new one, but once i logged in none of my passwords or data transferred even though it was the same account, just curious if there’s any way i can get my info onto my new computer besides using a sync key or manually importing it

Firefox won't sync anything since a while back, maybe since two months back, I am unable to force sync. Clearing cashe, uninstalling the app, relogging both phone and pc, neither of these syncs bookmarks across the devices. I am able to send tabs in-between the devices. Biggest issue is I can't save bookmarks on one device and expect them to be available on my other device Nokia 7.2

I just bought a new PC, part by part, and used my storage devices from my old PC. I formatted the windows drive and am on a fresh installation of windows 11. I tried to log in to my mozilla account, but couldn't remember my password so I used the "Forgot password" function. When I logged in, no bookmarks or history was saved. Is it possible to restore my synced data?

Hello, my old laptop broke. I bought a new one, installed Firefox, and signed into my Firefox account. My add-ons synced, but my passwords and bookmarks are gone. I can't access the old laptop now. Is there a way to fix this without a backup file? Or are add-ons the most I can get? Both devices have been added to the devices in the Firefox account.

Dec. 13 2025 08:44.hk m920t DESTKOP-FO76QM5 rbe..hN Attachment:1 Good day,

When 2D scanned to Sync mobile from Desktop-FO76QM5, error "Pair ...App" Using system camera ? ref. [Screenshot_20251213_083657_WeChat].png

To sync @gmail.com with Firefox, likely one PC won't Sync two accounts.Email, how to do that please? To change password of logging Sync at Firefox how to do that please? Regards [email removed]@netvigator.com HUANG, Li

Hello,

I synced my data today in mozilla and after that i reinstalled windows on my PC. now i installed fresh mozilla and logged in into my account but my data is not synced... i lost a lot of open tabs,bookmarks etc... what can i do? is synced version still somewhere or what? i did everything as i supposed to do but i cant see my previous open tabs and bookmarks..