how to open Outlook links via Firefox

finally got off my lazy arse and Googled how to tell Outlook to open any clicked links through Firefox, and not IE. This page showed a quick fix. Now things are much less painful, since I don't use IE much. I use the "Always View This Page in IE" quite a bit for certain work extranets that stupidly weren't designed to work with Firefox. But otherwise, I'm done with IE.