rem: "application/atom+xml": gBundle.getString("feedAtom") 
add: "application/atom+xml": gBundle.getString("feedAtom"), "text/xml": gBundle.getString("feedXML"), "application/xml": gBundle.getString("feedXML"), "application/rdf+xml": gBundle.getString("feedXML") 
context: function initFeedTab(){  const feedTypes = {    "application/rss+xml": gBundle.getString("feedRss"),    "application/atom+xml": gBundle.getString("feedAtom")  };  // get the feeds  var linkNodes = gDocument.getElementsByTagName("link");  var length = linkNodes.length;  for (var i = 0; i < length; i++) {    if (linkNodes[i].rel == "alternate" &&        linkNodes[i].type in feedTypes &&        linkNodes[i].href) {      addRow(linkNodes[i].title,             feedTypes[linkNodes[i].type],             linkNodes[i].href);    }  }  var feedListbox = document.getElementById("feedListbox");  if (feedListbox.getRowCount() > 0)    document.getElementById("feedTab").hidden = false;}
meta: 10520	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10520/7144fdfda6eb35bebb00d630ee210b066e19ffd6/feeds.js/clean/browser/base/content/pageinfo/feeds.js