Reloads Facebook and Messenger pages when leaving the tab to prevent high CPU usage

meta_reloader.js

// ==UserScript==
// @name         Facebook & Messenger Auto-Reloader
// @namespace    http://tampermonkey.net/
// @version      1.1
// @description  Reloads Facebook and Messenger pages when leaving the tab to prevent high CPU usage
// @author       Me
// @match        https://*.facebook.com/*
// @match        https://*.messenger.com/*
// @grant        none
// @run-at       document-idle
// ==/UserScript==

(function() {
    'use strict';

    // Configuration
    const DEBUG = false; // Set to true to see log messages
    const RELOAD_DELAY = 10; // Seconds to wait before reloading after leaving the tab

    // Variable to store the reload timeout
    let reloadTimeout = null;

    // Logging utility
    const log = (message) => {
        if (DEBUG) {
            console.log(`[FB/Messenger Reloader] ${message}`);
        }
    };

    // Function to handle visibility change
    const handleVisibilityChange = () => {
        if (document.hidden) {
            // Schedule the reload when the user leaves
            log(`Tab hidden, scheduling reload in ${RELOAD_DELAY} seconds`);
            reloadTimeout = setTimeout(() => {
                log('Executing scheduled reload');
                window.location.reload();
            }, RELOAD_DELAY * 1000);
        } else {
            // Cancel the reload if the user returns before the timeout expires
            if (reloadTimeout) {
                log('Tab visible again, cancelling scheduled reload');
                clearTimeout(reloadTimeout);
                reloadTimeout = null;
            }
        }
    };

    // Check if the Page Visibility API is supported
    if (typeof document.hidden !== "undefined") {
        log('Script initialized');
        document.addEventListener('visibilitychange', handleVisibilityChange, false);
    } else {
        log('Page Visibility API not supported');
    }
})();