rem: _content.printPreview(); 
add: _content.printPreview(gPrintSettings, false);  
context: function BrowserPrintPreview(){  // using _content.print() until printing becomes scriptable on docShell  try {    _content.printPreview();  } catch (e) {    // Pressing cancel is expressed as an NS_ERROR_FAILURE return value,    // causing an exception to be thrown which we catch here.    // Unfortunately this will also consume helpful failures, so add a    // dump(e); // if you need to debug  }}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/1fde5f13f3ec7880ec55d21c00cfccab6c2f05ce/browser.js/buggy/xpfe/browser/resources/content/browser.js