This is the very first thing you need to do before installing the app you want to use. (freecougardatingsites.com)
One of the ways to «bypass» the fact that Google Play doesn't allow for directly downloading APK files is to simply install the apps you want on your Android device (phone or tablet), back up the APK files and transfer them to your Kindle Fire. (lovemyfire.com)
It also has a stock version of Google Android 4.2 and users can install any app they want via Google Play. (goodereader.com)