add:   window._content.getSelection() .QueryInterface(nsISelectionPrivate) .addSelectionListener(gSelectionListener); 
context: function onLoadContent(){  //  // If the view source was opened with a "go to line" argument.  //  if (gGoToLine > 0) {    goToLine(gGoToLine);    gGoToLine = 0;  }  document.getElementById('cmd_goToLine').removeAttribute('disabled');}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/d5a503c05033f3db953ac392a54ed472b07da30e/viewsource.js/buggy/suite/browser/viewsource.js