redhat version 6.4

system-config-firewall

(system-config-firewall:3142): GVFS-RemoteVolumeMonitor-WARNING **: cannot connect to the session bus: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.

tail -f .xsession_errors

system-config-firewall

GVFS-RemoteVolumeMonitor-WARNING **: cannot connect to the session bus