FlightFox
Testing
The extension can be installed without building for testing purposes. See: Your first extension -> Installing
Building
The extension is built using the web-ext cli. See: Getting started with web-ext
In the source dir, run web-ext build to build a .zip of the extension. This can then be uploaded to addons.mozilla.org.
Publishing
New versions of the extension can be uploaded to (addons.mozilla.org). The extension is under the jonas@flightlogger.net Mozilla account as of writing.