Changes

Lots of people would like to script Firefox from [http://en.wikipedia.org/wiki/AppleScript AppleScript] (or, more generally, from the [http://developer.apple.com/documentation/AppleScript/Conceptual/AppleScriptX/Concepts/osa.html OSA]), and extension authors would like to be able to call out to [http://en.wikipedia.org/wiki/AppleScript AppleScript]/[http://developer.apple.com/documentation/AppleScript/Conceptual/AppleScriptX/Concepts/osa.html OSA] from their code as well.