add: gExtensionsView.scrollBoxObject.ensureElementIsVisible(gExtensionsView.lastChild); 
context:   addDownloads: function (aParams)  {    var numXPInstallItems = aParams.GetInt(1);    var isExtensions = gWindowState == "extensions";        var items = [];    for (var i = 0; i < numXPInstallItems;) {      var displayName = aParams.GetString(i++);      var url = aParams.GetString(i++);      var iconURL = aParams.GetString(i++);      if (!iconURL) {         iconURL = isExtensions ? "chrome://mozapps/skin/xpinstall/xpinstallItemGeneric.png" :                                  "chrome://mozapps/skin/extensions/themeGeneric.png";      }            var type = isExtensions ? nsIUpdateItem.TYPE_EXTENSION : nsIUpdateItem.TYPE_THEME;      // gExtensionManager.addDownload(displayName, url, iconURL, type);      var item = Components.classes["@mozilla.org/updates/item;1"]                           .createInstance(Components.interfaces.nsIUpdateItem);      item.init(url, " ", "app-profile", "", "", displayName, url, iconURL, "", type);      items.push(item);      // Advance the enumerator      var certName = aParams.GetString(i++);    }        gExtensionManager.addDownloads(items, items.length);  },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/21b2acb9dc6bcf2cf9601c89dbb2d656b60766f7/extensions.js/clean/toolkit/mozapps/extensions/content/extensions.js