Hello there! I had to revert my desktop state to yesterday using Acronis Image backup today and after this succeeded, I had the problem that Firefox didn't "believe" me, that I am me and so I had to re-authorize my sync account with it, which I did. After this all my saved login credentials are lost. Only the ones I entered since I went back to yesterdays' system state are in the list (namely 3 entries, one of which is the Firefox account itself). When I create a new empty profile and add this to my Firefox account, I get back all the logins. But this cant be the only solution?! I had to install and configure all sorts of plugins and this would be pretty time consuming just because the sync somehow isnt working correctly anymore?! Here is a pastebin of the beginning of the sync log in the empty profile: https://pastebin.com/XFcX6mv0 and here one of the "should be working" profile which doesnt sync the passwords from the server into the local profile: https://pastebin.com/SCFX9WpP