diff --git a/js/tests/e4x/Regress/regress-373082.js b/js/tests/e4x/Regress/regress-373082.js
new file mode 100755
index 00000000000..8328fe33d96
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+++ b/js/tests/e4x/Regress/regress-373082.js
@@ -0,0 +1,116 @@
+/* -*- Mode: java; tab-width:8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is JavaScript Engine testing utilities.
+ *
+ * The Initial Developer of the Original Code is
+ * Mozilla Foundation.
+ * Portions created by the Initial Developer are Copyright (C) 2007
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s): Igor Bukanov
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+var bug = 373082;
+var summary = 'Simpler sharing of XML and XMLList functions';
+var actual = '';
+var expect = '';
+
+printBugNumber (bug);
+printStatus (summary);
+
+var l;
+
+expect = '<a/>';
+l = <><a/></>;
+actual = l.toXMLString();
+TEST(1, expect, actual);
+
+expect = '<b/>';
+l.setName('b');
+actual = l.toXMLString();
+TEST(2, expect, actual);
+
+expect = '<c/>';
+XMLList.prototype.function::setName.call(l, 'c');
+actual = l.toXMLString();
+TEST(3, expect, actual);
+
+expect = 't';
+l = <><a>text</a></>;
+actual = l.charAt(0);
+TEST(4, expect, actual);
+
+expect = 't';
+actual = l.function::charAt.call(l, 0);
+TEST(5, expect, actual);
+
+expect = 't';
+with (l) actual = function::charAt(0);
+TEST(6, expect, actual);
+
+expect = 'TypeError: String.prototype.toString called on incompatible XML';
+
+try
+{
+    delete XML.prototype.function::toString;
+    delete Object.prototype.toString;
+    actual = <a>TEXT</a>.toString();
+}
+catch(ex)
+{
+    actual = ex + '';
+}
+TEST(7, expect, actual);
+
+expect = 'TypeError: String.prototype.toString called on incompatible XML';
+try
+{
+    var x = <a><name/></a>;
+    x.(name == "Foo");
+    print(x.function::name());
+}
+catch(ex)
+{
+    actual = ex + '';
+}
+TEST(8, expect, actual);
+
+try
+{
+    x = <a><name/></a>;
+    x.(name == "Foo");
+    print(x.name());
+}
+catch(ex)
+{
+    actual = ex + '';
+}
+TEST(9, expect, actual);
+
+END();