I work on a firefox addon using JPM.
I want to install it on my android phone, i\'ve run \"jpm xpi\" and copy xpi on my sdcard. When i browse to file://path/to/my/xpi in
Create github repository for your addon. Then get this extension:
https://addons.mozilla.org/en-US/firefox/addon/github-extension-installer/
Then go to your github repository with firefox on android, then make it display "desktop version of website" from firefox menu icon at top right, then click "add to firefox".
This is by far the easiest way to get addon from your computer onto android.