Note, only the default settings are used. So any accounts you use will not work. And all it does with the RDF is import the settings, then it's done with it.
Currently, there's a few bugs I found that needs to be fixed, so a 0.2.1 will be out once I track them down. One that may be affecting you is that the url is not allows sent to the password generator after you leave the defaults screen. Workaround until a new version comes out is to clear the url field, wait (maybe for the new password), then enter the url again. Another is that it seems to lose your settings, this will delay a 0.2.1 release though because I'm not sure where it's trying this at.