Unsigned package for trying the add-on before addons.mozilla.org.
Desktop (temporary): about:debugging#/runtime/this-firefox → Load Temporary Add-on → pick the .zip or .xpi.
Android: unsigned builds do not install from a file. Use web-ext run over USB, or wait for an AMO-signed build.
Firefox will refuse a permanent install of this file until Mozilla signs it.
Full Changelog: https://github.com/guysoft/firefox-ip-indicator/commits/v1.0.0