Automatic Tab Closer Based on URL Text

.js

// ==UserScript==
// @name      Autoclose URL
// @namespace Autoclose URL
// @include   *
// @grant     window.close
// ==/UserScript==

function check_if_should_close(url) {
    if (url.match(/yourURLtexthere/))
        return true;
    return false;
}

if (check_if_should_close(document.location.href)) {
    var win = window.open('your current page URL', '_self', '');
    window.close();
}