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Closing Confirmation

Prevents the page from being closed without your consent

Installationsanleitung

Du musst eine Erweiterung wie Tampermonkey, Greasemonkey oder Violentmonkey installieren, um dieses Skript zu installieren.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

Sie müssten eine Skript Manager Erweiterung installieren damit sie dieses Skript installieren können

(Ich habe schon ein Skript Manager, Lass mich es installieren!)

Installationsanleitung

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!) 

// ==UserScript==
// @name         Closing Confirmation
// @namespace    https://greasyfork.org/en/users/173828-snowofficial
// @version      1.0
// @description  Prevents the page from being closed without your consent
// @author       Copyright 2017, iomods.weebly.com, All rights reserved.
// @match        http://*/*
// @match        https://*/*
// @match        *://*
// @supportURL   http://iomods.weebly.com/
// @icon         https://cdn.discordapp.com/avatars/459369695519178773/d4ba99e72010e782441f050d63bd8670.png?size=1024
// @grant        GM_addStyle
// ==/UserScript==

window.onbeforeunload = function() {
    return "You sure you want to leave kid???";
};