I know that ALL of you have installed & use Firefox as a web browser on your computer -- certainly if not before, then after Pete sent out his email message last week regarding malware and viruses that infect computers through security holes in Internet Explorer.
But if you click on a link in an Outlook email message, and the link opens in Internet Explorer not Firefox, you need to re-set the default browser on your computer. Just follow the four simple steps at Mozilla's How To Make Firefox The Default Browser to make sure you only use Firefox from now on.
If you still need to use Internet Explorer to view some web sites, try using the IE Tab Firefox add-on instead.