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Simple but effective popup window blocker. Also tries to deny unsolicited redirections.
// ==UserScript==
// @name Pop Up Blocker
// @namespace http://tampermonkey.net/
// @description Simple but effective popup window blocker. Also tries to deny unsolicited redirections.
// @author Sohag1192
// @include *
// @version 2.1
// @grant none
// @run-at document-start
// ==/UserScript==
(function () {
'use strict';
// --- CONFIGURATION ---
var BLOCK_MODE = {
'ALL': 0, // Block all popups
'CONFIRM': 2, // Confirm each popup (Useful for debugging)
'GRANT_PERIOD': 4, // Block popups NOT initiated by a mouse click (Recommended)
'ALLOW_SECURE': 8, // Always allow HTTPS popups
'ALLOW_REDIRECTS': 16, // Allow redirects (Default: Block unsolicited redirects)
'CONFIRM_UNLOAD': 32 // Confirm before leaving page (Default: Off)
};
// Best Setting: Block popups unless you clicked something recently
var block_mode = BLOCK_MODE.GRANT_PERIOD;
var grant_period = 150; // Time in ms to allow popup after a click
var debug = false; // Set to true to see logs in console
// --- INTERNALS (DO NOT CHANGE) ---
var allowed_elements = {'a': true, 'button': {'type': 'submit'}, 'input': true, 'select': true, 'option': true};
var ts = 0;
var originalOpen = window.open;
var lastInteractedElement = null;
var notifications = 0;
// --- HELPER FUNCTIONS ---
function grantperiod_exceeded() {
if (!(block_mode & BLOCK_MODE.GRANT_PERIOD)) return true; // If mode is off, ignore
return Date.now() > (ts + grant_period);
}
function protocol_allowed() {
return (block_mode & BLOCK_MODE.ALLOW_SECURE) && location.protocol === 'https:';
}
function is_user_triggered() {
return !grantperiod_exceeded() || protocol_allowed();
}
function element_allowed(element) {
var allowed = element.tagName && allowed_elements[element.tagName.toLowerCase()];
if (allowed && typeof allowed === "object") {
for (var property in allowed) {
if (element[property] !== element[property]) return false;
}
}
return !!allowed;
}
// --- EVENT LISTENERS ---
// Track user interaction to distinguish real clicks from spam scripts
['mousedown', 'click', 'change'].forEach(evt => {
window.addEventListener(evt, function (event) {
ts = Date.now();
var element = event.target;
// Traverse up to find if we clicked a valid link/button
while (element.parentElement && !element_allowed(element)) {
element = element.parentElement;
}
lastInteractedElement = element;
if (debug) console.log('[Pop-Up Blocker] User interaction detected on:', element);
}, true);
});
// --- CORE BLOCKING LOGIC ---
// Override window.open
window.open = function () {
var args = Array.prototype.slice.call(arguments);
var url = args[0];
var target = args[1];
if (debug) console.log('[Pop-Up Blocker] window.open called for:', url);
// Allow if user clicked recently OR if we are in confirm mode and user says YES
if (is_user_triggered()) {
if (debug) console.log('[Pop-Up Blocker] Allowed (User Triggered)');
return originalOpen.apply(window, args);
} else if (block_mode & BLOCK_MODE.CONFIRM) {
if (confirm('Pop-Up Blocker: Allow popup to ' + url + '?')) {
return originalOpen.apply(window, args);
}
}
// BLOCK ACTION
console.warn('[Pop-Up Blocker] Blocked popup:', url);
notify('Blocked popup window', url, target, 0, function() {
// Callback if user clicks the notification to open it anyway
originalOpen.apply(window, args);
});
return null; // Return null to break the script trying to open the popup
};
// --- NOTIFICATION UI ---
function notify(text, uri, title, timeout, onclick, target) {
var notification = document.createElement('div');
notification.style.cssText = `
position: fixed; top: 0; left: 0; width: 100%; z-index: 2147483647;
background: #ffebee; color: #b71c1c; border-bottom: 2px solid #b71c1c;
padding: 10px; font-family: sans-serif; font-size: 14px;
box-shadow: 0 4px 6px rgba(0,0,0,0.1); display: flex; align-items: center; justify-content: space-between;
`;
var message = document.createElement('span');
message.innerHTML = '<b>🛑 ' + text + ':</b> ';
notification.appendChild(message);
// Link to open it anyway
var link = document.createElement('a');
link.href = uri || '#';
link.innerText = (uri && uri.length > 50) ? uri.substring(0, 50) + '...' : uri;
link.style.cssText = 'color: #0d47a1; text-decoration: underline; margin-left: 10px; cursor: pointer; font-weight: bold;';
link.onclick = function(e) {
e.preventDefault();
e.stopPropagation();
removeNotification();
if (onclick) onclick();
else if (uri) window.location.href = uri;
};
notification.appendChild(link);
// Close button
var closeBtn = document.createElement('button');
closeBtn.innerHTML = '✕';
closeBtn.style.cssText = 'background: none; border: none; font-size: 16px; cursor: pointer; color: #333; margin-left: 20px;';
closeBtn.onclick = removeNotification;
notification.appendChild(closeBtn);
document.body.appendChild(notification);
notifications++;
function removeNotification() {
if (notification.parentNode) notification.parentNode.removeChild(notification);
notifications--;
}
if (timeout) setTimeout(removeNotification, timeout);
}
})();