rem: urlSecurityCheck(this.linkURL, this.docURL); 
add: var doc =  this.target.ownerDocument; urlSecurityCheck(this.linkURL, doc.nodePrincipal); 
context:   saveLink: function() {    urlSecurityCheck(this.linkURL, this.docURL);    saveURL(this.linkURL, this.linkText(), null, true, false,            makeURI(this.docURL, this.target.ownerDocument.characterSet));  },
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10234/323286399cc3e12b9d640d15efcc6c52f3676e5e/nsContextMenu.js/buggy/browser/base/content/nsContextMenu.js