This repository contains Marionette in gecko extension form, intended for use with FxOS devices. It includes an installation script which you can use, provided your phone is connected via ADB:

source install_marionette_extension.sh VERSION

Where VERSION is a supported version number, one of: 1.3, 1.4, 2.0, 2.1, or 2.2.

If you need to install adb, see https://developer.mozilla.org/en-US/Firefox_OS/Debugging/Installing_ADB.

FirefoxOS v1.3 through v2.2 are currently supported.

This is also the 'marionette_extension' python package. Once you install this package, you will have access to a command line program called install_marionette which you can use like so:

marionette_extension --help

Which will show you what installation options you have available to you.

If you need an example, this is how you can install Marionette on a v1.3 device:

marionette_extension --install 1.3

You can also import the marionette_extension package into your python script and use its install function to install marionette via a script. Example:

from marionette_extension import install  
install(FXOS_VERSION, adb=ADBPATH) # Replace FXOS_VERSION with a supported version, and you may use ADBPATH to specify your adb path. If not specified, it will assume 'adb' is on the $PATH