FULL PRODUCT VERSION :
ADDITIONAL OS VERSION INFORMATION :
A DESCRIPTION OF THE PROBLEM :
At Mozilla we got multiple reports about Firefox crashes related to the Java plugin.
We tracked it down to the plugin calling _releaseObject (NPN_releaseobject) from a thread other than the main thread. This can race with our JS GC and cause Firefox crashes.
This affects multiple companies and intranet websites.
This bug can be reproduced often.