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javascriptgreasemonkeytampermonkey

How to set script only run one times? Greasemonkey/Tampermonkey

For example. new tab and include website is the same url

// ==UserScript==
// @name     _YOUR_SCRIPT_NAME
// @include  https://stackoverflow.com/
// @grant    GM_openInTab
// ==/UserScript==

var curTab  = GM_openInTab ("https://stackoverflow.com/");

visit SOF.com after than open more one SOF.com new tab

Solution

  • The question is not clear enough for a definite answer. Here is a script example based on available information:

    // ==UserScript==
// @name          One Time
// @description   Open New tab one time
// @match         https://stackoverflow.com/
// @grant         GM_openInTab
// @author        erosman
// @version       1.0
// ==/UserScript==

if (!localStorage.getItem('oneTime')) {
  
  localStorage.setItem('oneTime', 'true');
  GM_openInTab('https://stackoverflow.com/');
}