rem: return msgCompose.bodyConvertible( window.editorShell.contentWindow.document.childNodes[1]); 
add: return msgCompose.bodyConvertible(); 
context: function DetermineConvertibility(){    if (!msgCompose.composeHTML)        return msgCompConvertible.Plain;    try {        return msgCompose.bodyConvertible(             window.editorShell.contentWindow.document.childNodes[1]);    } catch(ex) {}    return msgCompConvertible.No;}
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/98ab9642f9a161172fc0e525a5991cb7521f8786/MsgComposeCommands.js/clean/mailnews/compose/resources/content/MsgComposeCommands.js