Add this as a bookmark to download an extension from chrome web store

browser bookmark

javascript:location.href='https://clients2.google.com/service/update2/crx?response=redirect&acceptformat=crx2,crx3&prodversion='+(navigator.appVersion.match(/Chrome\/(\S+)/)[1])+'&x=id%'+'3D'+(document.querySelector('a[href^="https://chrome.google.com/webstore/report/"]').pathname.match(/[^\/]+\/*$/)[0])+'%'+'26installsource%'+'3Dondemand%'+'26uc';