There are still people who use Firefox as their browser on both desktops and mobiles, although that percentage is growing smaller and smaller by the year. Last year (2013), that percentage was 20.09%, if the guys at Statcounter
are to be believed.* But that is not stopping Mozilla
from continuing to develop the Android version
of their browser, now coming up with a “mirroring” feature that enables devices to cast a tab of the browser to a Chromecast or Miracast streaming device.