Double click the bookmarks bar and click add page then where it says "URL" paste the code starting at javascript to the end of the code
Ultimate Tab Cloak: javascript:(function () {document.title=prompt('Tab Cloak\n\nEnter new Tab Title:');var icon=document.querySelector('link[rel="icon"]');switch(prompt('Choose new tab icon:\n\n[1] Google Search\n[2] Google Drive\n[3] Custom URL')){case'1':icon.setAttribute('href','https://www.google.com/favicon.ico');break;case'2':icon.setAttribute('href','https://ssl.gstatic.com/images/branding/product/2x/hh_drive_96dp.png');break;case'3':icon.setAttribute('href',prompt('Enter Custom Tab Icon URL:'))}})()
All in one: javascript:(function(){var bkmkltscript = document.createElement('script'); bkmkltscript.src = 'https://cdn.jsdelivr.net/gh/proxyhost/bookmarklets/aiobkmklt.js'; document.body.appendChild(bkmkltscript);})();
Embed Site: javascript:(function(){var url = prompt("Enter website url for cloaked page \nMade by Universal Unblocking"); var win = window.open(); var iframe = win.document.createElement(%27iframe%27); iframe.style="position:fixed;width:100vw;height:100vh;top:0px;left:0px;right:0px;bottom:0px;z-index:2147483647;background-color:white;border:none;"; if(url.includes('https://') || url.includes("http://")) {iframe.src = url;}else{iframe.src = "https://" + url;} win.document.body.appendChild(iframe);})();