Browser Development • What can cause this crash on exit?

Faulting application name: palemoon.exe, version: 6.8.1.9615, time stamp: 0x69f22be1 Faulting module name: xul.dll, version: 6.8.1.9615, time stamp: 0x69f22c90 Exception code: 0x80000003 Fault offset: 0x015246a3 Faulting process id: 0x1568 Faulting application start time: 0x01dceeda1b09aee8 Faulting application path: C:\Pale Moon\palemoon.exe Faulting module path: C:\Pale Moon\xul.dll

Several crashes on exit. Every crash has this specific address: 0x015246a3. Version 34.2.2 (32-bit) on Windows 10 1809 LTSC. Not 100% chance but I had this twice in a row right now.