TAB CLOAKER

Make a bookmarklet and paste this code into the address box:

javascript:(function() {var l = document.querySelector("link[rel*='icon']") || document.createElement('link');l.type = 'image/x-icon';l.rel = 'shortcut icon';l.href = 'https://google.com/favicon.ico';document.getElementsByTagName('head')[0].appendChild(l);document.title = 'Google';})();