Version-Release number of selected component:
firewall-config-0.2.12-6.fc18

Additional info:
reporter:       libreport-2.1.5
cmdline:        /usr/bin/python /usr/bin/firewall-config
core_backtrace: d393fa85d6b8b8c27d75abe0345dccc993749b47 0x3ad onChangeZone /usr/bin/firewall-config -
executable:     /usr/bin/firewall-config
kernel:         3.9.11-200.fc18.x86_64
runlevel:       N 5
uid:            1000

Truncated backtrace:
firewall-config:941:onChangeZone:TypeError: 'NoneType' object has no attribute '__getitem__'

Traceback (most recent call last):
  File "/usr/bin/firewall-config", line 941, in onChangeZone
    _services = services[:]
TypeError: 'NoneType' object has no attribute '__getitem__'

Local variables in innermost frame:
masquerade: False
self: <__main__.FirewallConfig object at 0x21f7a10>
args: (<TreeSelection object at 0x25785a0 (GtkTreeSelection at 0x23a74f0)>,)
ports: []
builtin: False
icmpblocks: []
active_zone: 'public'
defaults: False
services: None
immutable: False
forward_ports: []