How do I make Firefox auto-refresh on file change?

Question

Does anyone know of an extension for Firefox, or a script or some other mechanism, that can monitor one or more local files. Firefox would auto-refresh or otherwise update i

Answer 1

Browsersync can do this from the server side / outside of the browser.

This can achieve more repeatable results / things that don't require so much clicking.

This will serve a page and refresh on change

cd static_content
browser-sync start --server --files .

It also allows a scripting mode.