External editor for web pages

[Smith-Corona]

I wondered if there was any way to do external editing of a web page that was captured in UR. Along the lines of doing ctrl-J with a text item and editing it with Word, then saving it and seeing those changes in the orignal item. Doing ctrl-J with a web page opens it in my web browser (Firefox). I've installed the Firefox add-on Firebug to do the editing, but I can't see a way of saving the changes and seeing them reflected in UR.

The other way I thought of would be to specify an actual HTML editor as the external application to view web pages with, rather than the browser, but I can't see where in options you could do that.