http://www.xulplanet.com/reference/elemref/ref_editor.html A frame which is expected to contain an editable document. Set the value of the editortype attribute to 'html' to create an editor document. Mozilla provides two types of editors, the HTML editor and the plaintext editor. The editor does not provide any editing user interface; you would supply that yourself. However, text editing, image resizing, and table row and cell editing capabilities are provided. If you do not set the editortype attribute on an editor, you must enable editing using the makeEditable method. To specify the document to load in the editor use the src attribute. However, an issue is that if you specify the src attribute initially on the editor tag in the XUL file, the document does not become editable by default. To enable editing on an editor, do one of two things: Set the src attribute on the editor after the outer window has loaded, for example, in the onload handler. You might also set the src attribute based on what the user selects from a file dialog. In this case, set the editortype attribute on the editor. Call the makeEditable function to make the document loaded in the editor editable. To edit a new document, set the src attribute to 'about:blank'. A frame which is expected to contain an editable document. Set the value of the editortype attribute to 'html' to create an editor document. Mozilla provides two types of editors, the HTML editor and the plaintext editor. The editor does not provide any editing user interface; you would supply that yourself. However, text editing, image resizing, and table row and cell editing capabilities are provided. If you do not set the editortype attribute on an editor, you must enable editing using the makeEditable method.

To specify the document to load in the editor use the src attribute. However, an issue is that if you specify the src attribute initially on the editor tag in the XUL file, the document does not become editable by default. To enable editing on an editor, do one of two things:

Set the src attribute on the editor after the outer window has loaded, for example, in the onload handler. You might also set the src attribute based on what the user selects from a file dialog. In this case, set the editortype attribute on the editor.
Call the makeEditable function to make the document loaded in the editor editable.

To edit a new document, set the src attribute to 'about:blank'.

]]> nsIAccessibleProvider The type of editor to use. This value will be overriden depending on the content type of the document in the editor. An HTML editor. A plaintext editor. The URL of the file to load into the editor. If set to the string 'content-primary', this editor becomes the primary content for the page. The window for the primary content can be retrieved more conveniently using 'window.content'. Returns the accessibility object for the editor. The command manager handles operations on the editor. This read-only property contains the document object in the editor. This read-only property contains the window object in the editor. This read-only property contains the nsIDocShell object for the document. The editing session for the editor which is used to initialize the editor. You would not normally need to use this. The type of editor to use. This value will be overriden depending on the content type of the document in the editor. An HTML editor. A plaintext editor. getEditor ( window ) Returns the editing interface for the editor which contains numerous methods for manipulating the document. Pass the editor's contentWindow as the argument. getHTMLEditor ( window ) Returns the HTML editing interface for the editor which contains methods for manipulating an HTML document. Pass the editor's contentWindow as the argument. makeEditable ( editortype , waitForLoad ) This function enables editing for an editor. Specify 'text' or 'html' as the editortype. This read-only property contains an nsIWebBrowserFind object which can be used to search for text in the document. This read-only property contains the nsIWebNavigation object for the document. Most of its methods are callable directly on the editor itself, such as goBack and goForward. It also contains the load constants used by reloadWithFlags and loadURIWithFlags.