New mac pro 2.8, 14 Gigs of ram, running 10.5.2 fully updated. With only Firefox and Mail open, Firefox froze on the NYT website. Spinning beachball on a broken pixelated background just around it. Cursor could move, but couldn't pick up anything. Previously I've had problems with Firefox, due, I think, to it not being able to handle websites/advertizers delays when cookies are not automatically enabled (my guess, may be wrong). But previously when Firefox froze I could always mouse outside of it and force close the program. This business of freezing completely with Firefox is new. More doubts for me whether I did the right thing to upgrade to the new Mac Pro.