XUl runner enable extension

I am looking for some who knows mozilla xulrunner. I need to activate two firefox extension add-ons in my xulrunner app and don't know how to do it. If you haven't worked with XUlrunner, then this project is not for you. For someone who knows xulrunner, this will probably be simple. If you don't know, this isn't something you can research your way into doing.