Firefox Community Forum

Firefox deleted my entire browsing history while signed in with syncing on, with no user interaction. This should never happen. What is the point of Firefox sync if it does this?

I share my Sync account across 1 Android + 3 desktop devices (Win 10 or 11). So far no problems. A few days ago all the devices started dropping out of Sync.

I would say this all started with the Android device (v.153), which seems to have logged out of the account on its own. After reconnecting it, all the desktop devices went nuts...

1) desktop machines will need to reconnect to Mozilla account every time FF is launched 2) about:logins is always empty, even after logging back in and completing a sync routine 3) even when it states "Account disconnected" - "Sync is off", they will still receive tabs sent from the Android device; they can't send tabs as they won't see the other devices. Also, even while disconnected, they were able to add a new bookmark to the account. So, account is not actually fully disconnected... only some parts of Sync are.

Another symptom. Account's Connected Services list is clean and up to date (see images). Account recognizes new logins as already known hardware and avoids doubling them. But in Sync there's a mess of instances... all new attempts are seen as a new device. Many of these are of course dead links, as the latest login overwrites previous ones.

This happened while desktops were updating to v.154, but I wouldn't say it's related to that, as two of those machines also run a different Mozilla account on a second profile, and so far that account is not misbehaving.

The Android device also got disconnected a few more times, but now it seems more stable than its siblings, and the passwords are still accessible (as as you can see in the pics, it's not showing as a doubled Sync device).

I didn't try signing off all devices because I'm worried I won't be able to get back in... anyway, manually signing off a single one didn't change anything.

It seems to me this is a server-side issue. Is there a way to "refresh" the account without losing all data? Thank you

Up until today, when I opened Firefox browser on my Mac I would already be signed in. Today I’ve had to sign in using Passkey AND password each and every time I open the browser. Also, all my saved passwords have disappeared from the Mac OS browser. They seem to be intact on my iPhone app, but even after a couple of “Sync”s, I still have neither passwords nor autofill working on my Mac. Is there a temporary glitch in the system today, or are there steps I need to fix this? Thanks

Firefox sync is synchronizing; most notably, my passwords are not available. I am repeatedly asked to sign in; even after successfully signing in, I am immediately prompted again for my password and 2FA. After logging in (even if prompted to do so again) Firefox reports that it is syncing correctly, but password auto-fills are unavailable, and about:logins shows no entries, as is this were a fresh install. On restarting Firefox, I am once again logged out of Sync and need to log in yet again.

This is not affecting my mobile device; only my desktops and laptop.

I first noticed the problem about two days ago. Since then, I have tried the following suggested fixes, to no avail:

• Restarting Firefox
• Restarting my computers
• Restarting in safe mode
• Creating a new profile
• Resetting my password
• Logging out of all devices and logging back in

I would welcome suggestions on how else I might address this. Thanks, Kestrel

Recently I had to install a new windows, and I signed in to my Firefox account and found all the data from the previous windows including the open tabs, I could find them from "Tabs from other devices".

But now can't find them any more, although that device name is still there in my account page, under " connected services", please advise.

TLDR - I have two profiles set up, but they don't sync across devices.

I have Firefox on my main computer and recently got a second computer. When I downloaded and signed into Firefox on the second computer I created a new profile so I could have different bookmarks, settings, etc. At some point I got signed out of Firefox on the second computer. When I signed back in, it didn't show any profiles - just my usual default settings. On the main computer it still shows two profiles, including the one I set up on the second computer. I have tried signing out and back in on both computers, and manually syncing data. The main computer still shows two profiles, the second computer still shows zero profiles (but has my Firefox settings/bookmarks saved as default).

My tabs from a Windows 10 PC were imported to Firefox running on my Mac Studio ( OS is Tahoe ver 26.2). How do I easily recover these tabs and prevent this behavior in the future? Note: I have copied previous versions of the Firefox profiles files to my active profiles folder, but this does not bring back the lost tabs.