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

You can use live.js with a tampermonkey script to avoid having to include https://livejs.com/live.js in your HTML file.

// ==UserScript==
// @name         Auto reload
// @author       weirane
// @version      0.1
// @match        http://127.0.0.1/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    if (Number(window.location.port) === 8000) {
        const script = document.createElement('script');
        script.src = 'https://livejs.com/live.js';
        document.body.appendChild(script);
    }
})();

With this tampermonkey script, the live.js script will be automatically inserted to pages whose address matches http://127.0.0.1:8000/*. You can change the port according to your need.