i had to remove account and relogin and now its working agian

same problem. Absolutely latest version of Firefox (135.0 Build #2016070975). Cleared all open tabs. Signed out of Mozilla account, restarted android device.

Device now shows Last synchronised: never

Doesn't matter how many times I tap to Synchronise now. It never does.

I have the same problem, logged out and then in, restarted phone, still same problem: tapping on "synchronize now" does nothing to change "last synchronised: never" response, all the buttons under "choose what to synchronize" are checked and grayed out. I can see the Android device along with all the other devices in my Firefox account.

I'm having the same issue and seeing a lot of other people struggling with it. It's been well over a month since it started and I hoped it would be fixed within a couple updates but unfortunately not.

Automatic sync stops working, manual sync button does nothing, and the sync tabs button hangs endlessly. Tried re-adding my account and reinstalling. I also tried switching to Fennec from F-Droid and thought it was fixed, but the next day it was broken there too. Maybe something is going wrong when the automatic sync occurs. I hope we get some sort of response here or on Bugzilla.

https://bugzilla.mozilla.org/show_bug.cgi?id=1924544

Same issue here. Relogging didn't help, forcing the app to close didn't help. Currently the Sync Now button shows "never" and there's no feedback when pressing it. I was also not able to find any sort of logs that would help identify the issue. All I want is to move bookmarks to my new phone, but it just doesn't seem to be possible. Because of that reinstalling the app is not an option as I'd lose the bookmarks I want to move. I've tried all options I could find on the internet and so far the only one that seems to make sense is "The solution is to either go without syncing or switch to a working browser.", which is sad because I like Firefox and don't want to cave in to the Chromium monopoly.