I decided that I wanted to try out the new Android Operating System (JellyBean) on my Kindle Fire instead of the default OS (highly modified Gingerbread). JellyBean is what is used on the Google-Nexus7 Tablet.
I found this good tutorial. This tutorial uses a PC and the PC-Kindle Fire Utility Software, but you can use the Mac app. See another of my posts, Rooting Kindle Fire on the Mac
for more information watch this video:
How to Install Jelly Bean on the Amazon Kindle Fire
The links for jellybean and the googleApps (gapps) were found on xda