Here you'll find links to documentation about various Mozilla projects; these are often parts of Firefox or other products, but may also be used in other projects as well.
designModeproperty of the
documentobject; this is how Midas is invoked in Gecko. Internet Explorer also supports the ability to edit specific elements using the
contentEditableattribute; Starting with Firefox 3, Gecko also supports
contentEditable. Once Midas is invoked, a few more methods of the
documentobject become available.