Getting a Crash Log

Crash logs are incredibly useful when trying to track down a bug, especially if it’s not immediately reproducible.

Obtaining a crash log on macOS is incredibly easy since it automatically creates easily accessible crash logs for you.

If WebKit has just crashed or you can easily reproduce the crash, press the Report button on the CrashReporter dialog box to view the crash information.
Copy and paste the entire contents of the top portion of the CrashReporter window into your favorite text editor and upload it as an attachment in Bugzilla.
If the crash report dialog does not appear or the crash is hard to reproduce, crash logs can be retrieved from the Console app under Crashes, or from the ~/Library/Logs/DiagnosticReports folder.