Comment 17 for bug 927065

I disagree - yes there may be an error in the icedtea plugin but this is really poor errorhandling in firefox

Assertion failure: rt->onOwnerThread(), at /build/buildd/firefox-11.0+build1/build-tree/mozilla/js/src/jsapi.cpp:6317

Simply catching that error could avoid the browser crashing down alltogether. Perhaps even display some kind of sensible error message - "A plugin has made an error" or something.