Firefox 0.9.2 with Outlook 2003 on Windows XP
Looks like can’t stop trying to make life hard for other browsers. Or something.
If you’re running the same combination I am, and am annoyed that Outlook 2003 asks you to “Locate link browser” when you click on URLs in emails, and – if you do choose a link browser, like Firefox – opens two windows with the same URL, here’s a fix:
regedt32 and delete the following key, and all children:
At least that fixed it for me.