system-config-printer does not seem to alter firewall on start. This is not my first start but I permanently removed rules to allow ipp-client from work and home zones (the only zones that had it enabled). Still starting system-config-printer does not seem to do anything with firewalld. Warning: that could have something to do with bz 886529
You haven't said which version and release of system-config-printer you're using, but my guess is you aren't using the one that was very recently pushed to stable. Please try system-config-printer-1.3.12-7.fc18.
Created attachment 662398 [details] --debug output I'm seeing
using system-config-printer-1.3.12-7.fc18.x86_64
ok, I didn't click on add printer icon so NOTABUG, excuse me