User:Firedog

I vote for

• Support for Remote Control : positional link navigation (shift+arrowKey) and RGYB accesskeys
• Kiosk Mode : no menus, no scroll bars, just the page

Why? with these features Firefox could be used as a Set Top Box browser to view pages through a TV (people sitting 10 feet away and only using a remote control). The pages need to be specially written for TV but it also requires a certain amount of browser support. Opera is mostly there but it doesn't support accesskey, Netgem iPlayer is another possibility.