Click on link to shared drive in Lotus Notes email, opens in Firefox instead of Windows Explorer

I have Windows 7, Lotus Notes 8.5, and I use Firefox as my default browser. I often will put links to a shared drive in my emails so recipients can easily go straight to the files I am mentioning in my emails. When I click on them, these open in Firefox and do not work. When I make my default browser IE and click on the links, they open in Windows Explorer (not Internet Explorer) and work fine.

Is there a setting in Firefox I can change that will stop it from opening these links in emails?

Edited 5/14/14 because I learned more on the situation after making IE my default and seeing everything work fine.