Please help me, these are very valuable folders I have saved, literally my life, I used to erase windows, but there was a synchronization that should have worked

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.

I had Firefox installed on my desktop with Sync enabled. Everything — passwords, bookmarks, browsing history — used to be reliably saved and restored. This time, however, everything is gone. Nothing was synced: no passwords, no bookmarks, no saved data at all. I signed in with the same Firefox account I've always used.

It seems Firefox, for some reason, failed to back up or sync my data — even though Sync was turned on as always. This is a serious loss of information that should not have happened with Sync enabled.

Are your bookmarks and passwords on your other device connected to Firefox Sync?

Yes, I had it on my tablet, but when I logged in from my computer, everything was erased

As mentioned previously, Firefox Sync is not a backup service.

Do you have a separate backup of your Firefox profile?

No, there was just a synchronization on firefox(

Did you at any time use the "forgotten password" process?

Yes, when I logged in, I forgot my password and restored it by number