Comment 41 for bug 411358

Nice work. The key difference here is integration with GNOME. If I recall correctly, this or a related bug has already identified a GNOME component as the cause. The library you mention is part of the "gvfs" package which could definitely disable some useful functionality such a perhaps mapping sftp or SMB/CIFS over to your GNOME session so that you can drag and drop files over the network. I haven't tried your work around to see if that is, indeed the result, but I use gvfs regularly enough that I wouldn't want to break things involving it.