Whether you want to disable it or customize its behavior, the Crash Reporter can be controlled with this free Preference Pane plug-in. If you are using Mac OS X 10.3 or above, you can specify whether you want to be prompted (the default behavior), to be taken straight to the crash submission form, or simply to not be informed when an application crashes.
Version 1.1: Release notes were unavailable when this listing was updated.
Mac OS X 10.3 or later
*Previously available here