FWIW a new web page opened up and said my Flash was out of date. (my flash is not out of date)
This re-direct came from forums.macnn.com as I logged out :
"http://get24update.set2freeupdatenow.net/?tract=8seuWbUMRbCAn2uKSWwJD97VdDp_m0fj7pmXoZk7sfo .&cid=P23P4488980636760997646&offerid=2919&v_id=Tv vUc3xtSZeIzmR2-S2o3PfKi99QCoMPeO9Zrwm-Pwo."