When an application crashes in OS X you get a warning and a crash report on your desktop. The warning is displayed as a pop-up in the middle of the screen. This is convenient, but it could be better. It’s possible to get a crash notification in the Notification Center. Use the following command in Terminal to change this:
defaults write com.apple.CrashReporter UseUNC 1
Revert to the default setting with the following command
defaults write com.apple.CrashReporter UseUNC 0