- Copy this script line, and add it to a bookmark as the URL paramenter:
javascript:(async function(){try{messageId=document.querySelector('div[data-legacy-message-id]').getAttribute('data-legacy-message-id');user=document.querySelector("[aria-label*='Google Account: ']").attributes["aria-label"].value.match(/[^\(]+@[^\)]+/)[0];await navigator.clipboard.writeText('https://mail.google.com/mail/u/'+user+'/#all/'+messageId)}catch(e){console.error(e)}})()