Firefox Mobile coming to Android as early as February

Considering the popularity of Android on mobile phones, is it any wonder why Mozilla wants to put Firefox on it?

This is assume that they want to. Details are sketchy, but someone at the Mozilla Community website put out the word that Firefox Mobile for Android will be available, as soon as February. Of course, this leads me to wonder why people would want Firefox OS on a Google phone. Shouldn’t Chrome be good enough?