Java crasher firefox.

Når jeg besøger en side med en java applet, crasher firefox med følgende besked:

INTERNAL ERROR on Browser End: Exec of "java_vm" failed: 2
<
System error?:: No such file or directory

** (Gecko:12020): WARNING **: Serious fd usage error 16

** (Gecko:12020): WARNING **: Serious fd usage error 8
INTERNAL ERROR on Browser End: Could not read ack from child process
System error?:: No such file or directory


Firefox version: 0.9.1
Java Version: 1.4.2_03-b02
Operativ system: Linux
Kernel version: 2.6.6 (i686)