Firefox 18 and Thunderbird 17.02 close critical holes
Mozilla has fixed 20 security holes with the release of Firefox ESR 17.0.2, Thunderbird 17.0.2 and Thunderbird ESR 17.0.2; 12 of these vulnerabilities have been rated critical by the organisation, the rest are classified as having high impact. Firefox 18 fixes an additional moderate security issue with touch events that caused a page in an iframe to see touch events occurring within other iframes. The W3C Touch events technology was introduced with Firefox 18 and the issue therefore does not affect older versions of the browser or Thunderbird.
You don't need to be a genius to debug a pf.conf firewall ruleset, you just need the guts to run tcpdump