Could not initialize the applications security component; Firefox 17.0.1; TA 4.7.3

Hey guys,

today for the first time ever I stumbled over an error message on a thinapped Firefox 17.0.1 packaged with TA 4.7.3 and run on Vista SP2 x86.

The error message: http://kb.mozillazine.org/Could_not_initialize_the_browser_security_component

I captured FF with all standard configs and did everything like I do it always and like it runs on all my machines.

Any ideas?