rem: gBrowser.setAttribute("autocompleteenabled", gFormFillEnabled); 
add: var formController = Components.classes["@mozilla.org/satchel/form-fill-controller;1"].getService(Components.interfaces.nsIAutoCompleteInput); formController.disableAutoComplete = !gFormFillEnabled; 
context:   toggleFormFill: function ()  {    try {      gFormFillEnabled = gPrefService.getBoolPref(this.domain);    }    catch (e) {    }    gBrowser.setAttribute("autocompleteenabled", gFormFillEnabled);    var searchBar = document.getElementById("search-bar");    if (searchBar) {      if (gFormFillEnabled)        searchBar.removeAttribute("disableautocomplete");      else        searchBar.setAttribute("disableautocomplete", "true");    }  }
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/39115f8b1486ca8bbd15f26e58c627edb3e5b056/browser.js/clean/browser/base/content/browser.js