Java crashes in Mozilla Firefox

[Per Anton Rønning]

Heinz Diehl wrote:
> On 06.10.2011, Per Anton Rønning wrote: 
> 
>> I downloaded the latest Firefox, and the latest Java as well. But now FF 
>> crashes when trying to start Java Plugin. My internet banking logon 
>> application is a good example, but it also crashes when trying to check 
>> if Java is correctly installed form the Java homepage (Oracle).
> 
> Works for me.
> 
> [htd at wildsau ~]$ rpm -qa | egrep 'java|firefox'
> java_cup-0.11a-6.fc15.noarch
> firefox-7.0.1-1.fc15.x86_64
> tzdata-java-2011i-1.fc15.noarch
> java-1.5.0-gcj-1.5.0.0-35.fc15.x86_64
> java-1.6.0-openjdk-1.6.0.0-59.1.10.3.fc15.x86_64
> 
>> I Tried to go back to my previous Firefox (FF 3), but to no avail.
> 
> FF3 is rather old, have you considered to upgrade?
I did upgrade. I have Firefox 5 ,6 and (as of today) 7
I startet FF6 in a termina window and tried my internet banking logon.
The following error message was printed in the terminal window as 
Firefox closed down:

Error occurred during initialization of VM
java/lang/NoClassDefFoundError: java/lang/Object

Ring a bell?

PA