Sociable Version 3.5.2
There seems to be a problem with the way sociable interfaces with facebook. It's not a problem for me, but I figured I should let the developers know so that it can be fixed in later versions. Here's the firebug report.
uncaught exception: [Exception... "Component returned failure code: 0x80040111 (NS_ERROR_NOT_AVAILABLE) [nsIXMLHttpRequest.statusText]" nsresult: "0x80040111 (NS_ERROR_NOT_AVAILABLE)" location: "JS frame :: http://static.ak.connect.facebook.com/connect.php/en_US/js/Api/CanvasUtil/Connect/XFBML :: anonymous :: line 124" data: no]