Sorry to hear about this problem. Is your Firefox configured to sync saved logins? This article has the steps to check on that setting: [[How do I choose what information to sync on Firefox?]] Assuming that's not the problem, you can install the following add-on to investigate what data is in the cloud for your Sync account. After installing it, type or paste '''about:sync''' in the address bar and press Enter to pull the server data. Are your saved logins listed? https://addons.mozilla.org/firefox/addon/about-sync/ If so, if you can't get it to sync, you can at least copy/paste it for reference.