Nice. On Firefox it is a little confusing because nothing happen unless you reload the browser. Also wrt. CORS, I think the best way in your case is probably to

Nice. On Firefox it is a little confusing because nothing happen unless you reload the browser. Also wrt. CORS, I think the best way in your case is probably to use a greasemonkey script. I documented several ways to bypass the CORS in here: https://github.com/derek-zhou/airss https://github.com/derek-zhou/airss It is a similar project as yours.