rem: els[i].removeAttribute("collapsed"); 
add: els[i].removeAttribute("moz-collapsed"); 
context:   showXULChrome: function(aTag, aShow)  {    var XULNS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";    var els = document.getElementsByTagNameNS(XULNS, aTag);        var i;    for (i = 0; i < els.length; ++i) {      // XXX don't interfere with previously collapsed toolbars      if (els[i].getAttribute("fullscreentoolbar") == "true") {        this.setToolbarButtonMode(els[i], aShow ? "" : "small");      } else {        if (aShow)          els[i].removeAttribute("collapsed");        else          els[i].setAttribute("collapsed", "true");      }    }        var controls = document.getElementsByAttribute("fullscreencontrol", "true");    for (i = 0; i < controls.length; ++i)      controls[i].hidden = aShow;  },
meta: 5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5459/cf7d4f59f9c990696c4ed8d1160c556a5dce315c/fullScreen.js/buggy/xpfe/global/resources/content/fullScreen.js