rem: const mimeSvc = Components.classesByID[mimeSvcCID].getService(mimeSvcIID); 
add: const mimeSvc = Components.classes[mimeSvcContractID].getService(mimeSvcIID); 
context: function getMIMEInfoForType(aMIMEType){  const mimeSvcCID = "{03af31da-3109-11d3-8cd0-0060b0fc14a3}";  const mimeSvcIID = Components.interfaces.nsIMIMEService;  const mimeSvc = Components.classesByID[mimeSvcCID].getService(mimeSvcIID);  try {      return mimeSvc.GetFromMIMEType(aMIMEType);  }  catch (e) {  }  return null;}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/0d86460c009a2d8f70819b0c054a206112f544f1/contentAreaUtils.js/buggy/suite/common/contentAreaUtils.js