Hi

Thank you for your question about the Firefox Sync service.

It appears from your question, that you are using Firefox Sync as a back up service. This is not what Sync is designed to do. The Firefox Sync service takes a copy of the data you wish to include and transfers it to a second device (typically a mobile device such as a tablet or a telephone) running a copy of Firefox. The storage in between all attached devices is both temporary and fragile and is not stable enough to be (and is not designed as) a reliable backup service.

If you have a copy of your Firefox profile for desktop Firefox, you may be able to recover your bookmarks and other data. Please have a read of this article.

If you have a copy of your data on a mobile version of Firefox, please follow these instructions to connect it to Firefox Sync to copy your data.

Okay sorry, I should mention that, I have already logged in on several devices and it worked well, loaded everything. Even on this pc before reinstall it worked well, but when after win reinstall nothing is happening. But sadly none of those devices I have available now so I cant use them for this. I also downloaded 2 months ago Firefox for iOS but I’m not sure if I logged in that time, and when I tried to sync it now it also didn’t do anything. And it’s 100% correct account. I just want to log in and have my bookmarks and passwords , bcs some of them were really important. But sadly I don’t have copy of it so I can’t do that also.