Firefox 3.0.4 won't start anymore after liveupdate

Hi,

 

I've done several searches on the site to see if anyone else has a similiar issue, but got no results. 

 

I have a Windows Vista Ultimate SP1 (X32) laptop that is having all kinds of issues with Firefox 3.0.4 since a recent upgrade to NIS2009.

 

Firefox will no longer start at all, with no 2 exceptions. Exception 1 - when i open a local HTML file (FF is the default browser) . Exception 2 - when i start it in safe mode. This is unacceptable to me as i use it for everything , so hopefully someone has some ideas as to why this is.

 

I also searched Mozilla's kbase, and tried creating a new profile which didn't work either. I've also tried reinstalling FF but that did nothing to solve the problem.

 

Any suggestion on how to fix this?