In the original interface mockup for the today widget "Go to copied link" (https://bugzilla.mozilla.org/show_bug.cgi?id=1175574) distinguished the title and subtitle through text colour as well as size. A minor change, but one which makes the less important content a little more subtle.
Created attachment 8768568 [details] [review] Pull request
Comment on attachment 8768568 [details] [review] Pull request LGTM!
Verifying as fix on master 6ad4b686.