I\'m wondering how I curve the corners of the popup.html page on a Chrome extension? I\'ve tried... http://borderradius.com/ entering 10 for all cornors and putting that in
Do you mean this whole popup container? It's not possible.
You can right click on a popup icon and select "Inspect popup" and then play with css in the inspector - you will see that popup container itself is out of reach (its some system GUI element probably).