Edits to your Firefox profile's userChrome.css file can make all sorts of fun and useful changes to the fox's chrome, menus, dialogs and toolbars. For instance, I've disabled the Forward, Back and ...

But the Dynamic CSS that works for text widgets is not working for Buttons. Everything seems to be okay to me, but my class does not appear in the inheritance list for the button text properties. In ...

That example sets the button color (and font style) for the entire window, leaving open the question of how to control those attributes separately for each individual widget. (My students need black ...