java and firefox crashes on FC13

[Alex]

Hi,

Has anyone else experienced a large number of firefox crashes in the
last few days with FC13? I have all the latest updates for x86_64, and
I believe the recent java updates have caused some instability with
firefox:

java-1.6.0-openjdk-plugin-1.6.0.0-46.1.8.3.fc13 Wed 01 Dec 2010 10:02:28 PM EST
java-1.6.0-openjdk-1.6.0.0-46.1.8.3.fc13      Wed 01 Dec 2010 10:02:16 PM EST

The bug reporting tool thing reports SIGSEGV (signal 11), but doesn't
really describe the cause. It seems to happen when visiting a page
that requires java.

Ideas greatly appreciated.
Thanks,
Alex