> Spoon currently supports Internet Explorer 6, 7, and 8, Firefox 3 and 3.5, and Safari 2, 3, and 4, on the Windows platform. Support for the Chrome and Opera browsers is coming soon!
Which isn't even mentioned where you might expect - where they discuss the plug-in. If you go to any individual app in Linux (Chrome, FF3.5) you just get "this browser isn't supported".