this._describePreferredAction(aType).toLowerCase().indexOf(filterValue) != -1 || aType.type.toLowerCase().indexOf(filterValue) != -1 || (aType.primaryExtension && aType.primaryExtension.toLowerCase().indexOf(filterValue) != -1); 
this._describePreferredAction(aType).toLowerCase().indexOf(filterValue) != -1; 
  _matchesFilter: function(aType) {    var filterValue = this._filter.value.toLowerCase();    return aType.description.toLowerCase().indexOf(filterValue) != -1 ||           this._describePreferredAction(aType).toLowerCase().indexOf(filterValue) != -1 ||           aType.type.toLowerCase().indexOf(filterValue) != -1 ||           (aType.primaryExtension &&            aType.primaryExtension.toLowerCase().indexOf(filterValue) != -1);  },
5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5872/d54f527d65e7fe6959b17e1a2dead0dce1170bbf/applications.js/buggy/browser/components/preferences/applications.js