Comment 3 for bug 1660287

There's more:

  dbus (send)
       bus=session
       interface=org.gnome.GConf.Database,
  dbus (send)
       bus=session
       interface=org.gtk.Private.RemoteVolumeMonitor,
  dbus (send)
       bus=session
       interface=org.freedesktop.DBus,
  dbus (receive, send)
       bus=session
       interface=ca.desrt.dconf.Writer,

mitigate syslog entries which occur when I click the file upload dialog at https://uploadfiles.io/:

Jan 30 11:24:31 lat61 dbus[3005]: apparmor="DENIED" operation="dbus_method_call" bus="session" path="/org/gnome/GConf/Database/0" interface="org.gnome.GConf.Database" member="LookupExtended" mask="send" name="org.gnome.GConf" pid=18514 label="/usr/lib/firefox/firefox{,*[^s][^h]}" peer_pid=3192 peer_label="unconfined" info="No such file or directory"

Jan 30 11:55:55 lat61 dbus[3005]: apparmor="DENIED" operation="dbus_method_call" bus="session" path="/org/gtk/Private/RemoteVolumeMonitor" interface="org.gtk.Private.RemoteVolumeMonitor" member="IsSupported" mask="send" name=":1.38" pid=25377 label="/usr/lib/firefox/firefox{,*[^s][^h]}" peer_pid=3226 peer_label="unconfined"

Jan 30 12:08:15 lat61 dbus[3005]: apparmor="DENIED" operation="dbus_method_call" bus="session" path="/org/freedesktop/DBus" interface="org.freedesktop.DBus" member="StartServiceByName" mask="send" name="org.freedesktop.DBus" pid=25377 label="/usr/lib/firefox/firefox{,*[^s][^h]}" peer_label="unconfined" info="No such file or directory"

ca.desrt.dconf.Writer receive:
Jan 30 12:14:29 lat61 dbus[3005]: apparmor="DENIED" operation="dbus_signal" bus="session" path="/ca/desrt/dconf/Writer/user" interface="ca.desrt.dconf.Writer" member="Notify" name=":1.30" mask="receive" pid=25377 label="/usr/lib/firefox/firefox{,*[^s][^h]}" peer_pid=3201 peer_label="unconfined"

ca.desrt.dconf.Writer send:
Jan 30 11:12:36 lat61 gnome-session[3140]: (firefox:18514): dconf-WARNING **: failed to commit changes to dconf: GDBus.Error:org.freedesktop.DBus.Error.AccessDenied: An AppArmor policy prevents this sender from sending this message to this recipient; type="method_call", sender=":1.501" (uid=1000 pid=18514 comm="/usr/lib/firefox/firefox ") interface="ca.desrt.dconf.Writer" member="Change" error name="(unset)" requested_reply="0" destination="ca.desrt.dconf" (uid=1000 pid=3201 comm="/usr/lib/dconf/dconf-service ")

Will be part of VERSION 6 of the patch at https://bugs.launchpad.net/bugs/1659988