I want to edit the MIME type settings for Safari so I could use MediaWiki's method to automatically edit text in an external editor, or more specifically, so I can change the associated application for the
application/x-external-editor MIME type.
Can somebody tell me if it is possible (my Google searches were pretty much fruitless) and if so, how to do it? Is it a shortcoming of Safari?
I'm on OS X by the way.