Comment 18 for bug 1038434

Aha, looks like I still had some DBUS-using plugins enabled,

For me Kupfer seems stable now with basic functionality, since disabling all the included plugins that use dbus.

So the workaround is to ensure all of the following are disabled:

Empathy
Gajim
Getting Things GNOME
Gwibber
Gwibber (Simple)
Selected File
Notes
Pidgin
System Services
Skype
Thunar
Tracker
Tracker 0.6