NIS 2009 Version 16.7.2.10 Does Not Play Well with Firefox 3.0.13

This morning NIS 16.7 was automatically installed through my Windows Live update. My experience so far has been with Firefox 3.0.13. If I download a file from the web, 50% of the time Firefox freezes during the download. Task Manager cannot 'end task'. Then my Vista Home Premium 32 bit freezes as well. Has anybody else experienced this?

 

On a brighter note: I've noticed that this patch has solved the issue with NIS shutting down Windows Defender upon a restart, and have noticed that the above version of Firefox has not crashed at all upon exit.