Changes

#* especially on Windows, any feature which may pop up dialog boxes or system prompts (known cause of hangs), or use the window system in unusual ways (full-screen)

#* especially interested in crashes which don't trigger the Mozilla crash reporter, especially when they are reproducible.

# Check for bugs

#* Is there a bug listed [https://bugzilla.mozilla.org/showdependencytree.cgi?id=OOPP&hide_resolved=1 here] already? If so, comment!