rem: navTB.parentNode.removeChild(printPreviewTB); 
add: navToolbox.parentNode.removeChild(printPreviewTB); 
context: function BrowserExitPrintPreview(){  gInPrintPreviewMode = false;  var browser = getBrowser();  browser.setAttribute("handleCtrlPageUpDown", "true");  // exit print preview galley mode in content area  var ifreq = _content.QueryInterface(    Components.interfaces.nsIInterfaceRequestor);  var webBrowserPrint = ifreq.getInterface(    Components.interfaces.nsIWebBrowserPrint);       webBrowserPrint.exitPrintPreview();   _content.focus();  // remove the print preview toolbar  var navTB = document.getElementById("nav-bar");  var printPreviewTB = document.getElementById("print-preview-toolbar");  navTB.parentNode.removeChild(printPreviewTB);  // restore chrome to original state  toggleAffectedChrome(false);  // restore old onclose handler if we found one before previewing  var mainWin = document.getElementById("main-window");  mainWin.setAttribute("onclose", gOldCloseHandler);}
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/f72ade79d369135e6061d25e1d21efac093a283c/browser.js/buggy/xpfe/browser/resources/content/browser.js