add: this.setAccessibleNodes(PrefUtils.getPref("inspector.dom.showAccessibleNodes"), false); 
context:   initialize: function(aPane)  {    //this.initColumns();    this.mPanel = aPane;    aPane.notifyViewerReady(this);    this.setAnonContent(PrefUtils.getPref("inspector.dom.showAnon"), false);    this.setWhitespaceNodes(PrefUtils.getPref("inspector.dom.showWhitespaceNodes"));    this.setFlashSelected(PrefUtils.getPref("inspector.blink.on"));  },
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/083e28aa177091ef9d7bc18f300764d56e827314/dom.js/buggy/extensions/inspector/resources/content/viewers/dom/dom.js