So, i upgraded Firefox to 3.6 only to discover it breaks shadowbox in most of my sites, and in an attempt to debug it, found out serverfault.com and stackoverflow.com are broken in this version. Real effin nice. I have a feeling i will be very busy debugging this winter….

UPDATE!

if your shadowbox is broken in FF 3.6, make sure DEFER is NOT set when you call shadowbox.js!
I don’t know why, but tip courtesy of Brian Guertin!