achere

javascript: (
  function() {
    const hrefArr=window.location.href.split('/');
    const eid=hrefArr[hrefArr.length-1];
    const ver = /Chrome\/(\d\d.\d)/.exec(window.navigator.userAgent)[1];
    const urlString = `https://clients2.google.com/service/update2/crx?response=redirect&acceptformat=crx2,crx3&prodversion=${ver}&x=${encodeURIComponent(`id%3D${eid}%26installsource%3Dondemand%26uc`)}`;
    window.open(urlString);
  }
)()