Follow the instructions at https://wiki.mozilla.org/Mobile/Fennec/Android#Building_Fennec to build, package, and install Fennec on your device.
=== Step two: Install MOZ_HOST_BIN ===
Follow the instructions at https://wiki.mozilla.org/Mobile/Fennec/Android/Testing#Host_Builds_.28MOZ_HOST_BIN.29.
== Running tests ==