I'm not sure I understand how this is unfeasible for Alfred to implement... In a probable majority of cases, you can just query {domain}/favicon.(ico|png|jpg) and get a 200 response with the icon... If it doesn't look good, so be it — at least the app tried for me rather than just forcing me to do all the manual work of finding, saving, and dragging the icon around to the little square target on the Web Search window.
A slightly more complex implementation — but still dead simple — is to just parse the HTML of the page for the <link rel="shortcut icon" /> which definitively points to the icon if there is one.
Aaron Wright got a reaction from Alan He in Why favicon not supported ?
