rem: var frameURL = this.target.ownerDocument.location.href; 
add: var doc = this.target.ownerDocument; var frameURL = doc.documentURIObject.spec; 
context:   showOnlyThisFrame: function() {    var frameURL = this.target.ownerDocument.location.href;    try {      urlSecurityCheck(frameURL, this.browser.contentPrincipal,                       Ci.nsIScriptSecurityManager.DISALLOW_SCRIPT);      this.browser.loadURI(frameURL);    } catch(e) {}  },
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/8395/dead8a5cf8861ac7e26a1a10a3ab598bbeb53c4b/nsContextMenu.js/clean/browser/base/content/nsContextMenu.js