This bug was filed from the crash reporting server and is br-c62a2c84-6340-4268-b66a-7e14a4263490. =========================================
How to reproduce the crash? Could you give a try to 5.4.5 or brand new 6.0.2?
All those crash signatures were dupliates of Bug 105769 that was fixed for 5.4. So please use 5.4.7. *** This bug has been marked as a duplicate of bug 105769 ***