Hello, I have a Firefox Account and I use Firefox Sync. I can use the sync functions on my personal computers (one laptop and one desktop using Ubuntu) and on my professional computer (a desktop using Windows 7). But Firefox Sync does not work on my personal Android 5.1 Smartphone (a HTC Desire 612) nothing is synced and I don't know how to solve this. Thanks and regards, Ciryon _{edit: removed personal information for your protection. (philipp)}