rem: rootShell.observerService.AddObserver(vfdFocusObserver, "vfd-focus"); 
add: rootShell.observerService.addObserver(vfdFocusObserver, "vfd-focus", false); 
context:   startup: function ()  {    // add a focus observer so that we can update our content depending on which    // document is at front    var rootShell = vxUtils.getRootShell();    if (rootShell && "observerService" in rootShell)      rootShell.observerService.AddObserver(vfdFocusObserver, "vfd-focus");       this.mBundle = document.getElementById("historyBundle");  }
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/d18d7e2b176a10ab2598f8549a9bd79b1a50de28/history.js/buggy/extensions/vixen/resources/content/history/history.js