I finally found out what was causing my safari to crash... PICLENS safari plug in. i did an archive and install already and surprisingly the add ons i have for safari like forgetmenot and piclens were gone. (same thing happened for my quicktime), anyway, i just tried installing piclens again and there! my safari quits like crazy when i visit my multiply! so there i just remembered that prior to the quitting safari issue i also downloaded the newest version of piclen 1.5. i had an old piclens installed. so there, maybe there are add ons you have that makes your safari go bokners too