Description of problem:
I encountered this when starting Firefox shortly after logging into XFCE.

If it matters, note this account's staff_t context.
SELinux is preventing /usr/bin/python2.7 from 'connectto' accesses on the unix_stream_socket @/tmp/dbus-mq8ZeGKq8A.

*****  Plugin catchall (100. confidence) suggests  ***************************

If you believe that python2.7 should be allowed connectto access on the dbus-mq8ZeGKq8A unix_stream_socket by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# grep python /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                staff_u:staff_r:staff_t:s0-s0:c0.c1023
Target Context                system_u:system_r:xdm_dbusd_t:s0-s0:c0.c1023
Target Objects                @/tmp/dbus-mq8ZeGKq8A [ unix_stream_socket ]
Source                        python
Source Path                   /usr/bin/python2.7
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           gnome-terminal-3.6.1-2.fc18.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.11.1-97.fc18.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 3.9.4-200.fc18.x86_64 #1 SMP Fri
                              May 24 20:10:49 UTC 2013 x86_64 x86_64
Alert Count                   38
First Seen                    2013-05-16 11:52:53 PDT
Last Seen                     2013-06-12 11:55:41 PDT
Local ID                      1a0c4809-1610-48e4-8899-c1fadc156606

Raw Audit Messages
type=AVC msg=audit(1371063341.974:923): avc:  denied  { connectto } for  pid=18626 comm="gnome-terminal" path=002F746D702F646275732D6D71385A65474B713841 scontext=staff_u:staff_r:staff_t:s0-s0:c0.c1023 tcontext=system_u:system_r:xdm_dbusd_t:s0-s0:c0.c1023 tclass=unix_stream_socket


type=SYSCALL msg=audit(1371063341.974:923): arch=x86_64 syscall=connect success=no exit=EACCES a0=3 a1=7fffd7e1cfa0 a2=17 a3=0 items=0 ppid=18358 pid=18626 auid=1000 uid=1000 gid=100 euid=1000 suid=1000 fsuid=1000 egid=100 sgid=100 fsgid=100 ses=6 tty=(none) comm=gnome-terminal exe=/usr/bin/gnome-terminal subj=staff_u:staff_r:staff_t:s0-s0:c0.c1023 key=(null)

Hash: python,staff_t,xdm_dbusd_t,unix_stream_socket,connectto

audit2allow

#============= staff_t ==============
allow staff_t xdm_dbusd_t:unix_stream_socket connectto;

audit2allow -R
require {
	type staff_t;
	type xdm_dbusd_t;
	class unix_stream_socket connectto;
}

#============= staff_t ==============
allow staff_t xdm_dbusd_t:unix_stream_socket connectto;


Additional info:
reporter:       libreport-2.1.4
hashmarkername: setroubleshoot
kernel:         3.9.4-200.fc18.x86_64
type:           libreport