rem: return getMIMEService().GetFromMIMEType(aMIMEType); 
add: return getMIMEService().getFromTypeAndExtension(aMIMEType, aExtension); 
context: function getMIMEInfoForType(aMIMEType){  try {      return getMIMEService().GetFromMIMEType(aMIMEType);  }  catch (e) {  }  return null;}
meta: 5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5459/2fa6e444e81ba5ddca84aacad4927d38c0a2171f/contentAreaUtils.js/buggy/browser/base/content/contentAreaUtils.js