"2 ...romedia.Flash Player.plugin
0x06b14140 Flash_EnforceLocalSecurity + 47880"
I've had recurring Safari crashes that are quite annoying. Most of them appear related to the Flash Player plug (both version 8 and 9 for OS X); they all appear similar to the crash report line above.
Apparently, it's a bug in Webkit, FLash, or some synergistic malfunction. Safari crashes about 5 or more times a day. And it's weird, because though it says it has crashed I still have to force quit Safari.