KeepassXC with sync to dropbox or even better to keybase.io KBFS. There is Chrome and Firefox extension. Shameless plug I'm working on new kind of extension https://github.com/mauron85/keepassxc-browser. There is alpha release already, but missing many features. My goal is to make it work in major browser and also with NativeClient version of KeePassXC https://github.com/varjolintu/keepassxc.
