diff -r 000000000000 -r 6474c204b198 js/src/tests/ecma_3/String/regress-104375.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/ecma_3/String/regress-104375.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,82 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * Date: 12 October 2001
+ *
+ * SUMMARY: Regression test for string.replace bug 104375
+ * See http://bugzilla.mozilla.org/show_bug.cgi?id=104375
+ */
+//-----------------------------------------------------------------------------
+var UBound = 0;
+var BUGNUMBER = 104375;
+var summary = 'Testing string.replace() with backreferences';
+var status = '';
+var statusitems = [];
+var actual = '';
+var actualvalues = [];
+var expect= '';
+var expectedvalues = [];
+
+
+/*
+ * Use the regexp to replace 'uid=31' with 'uid=15'
+ *
+ * In the second parameter of string.replace() method,
+ * "$1" refers to the first backreference: 'uid='
+ */
+var str = 'uid=31';
+var re = /(uid=)(\d+)/;
+
+// try the numeric literal 15
+status = inSection(1);
+actual  = str.replace (re, "$1" + 15);
+expect = 'uid=15';
+addThis();
+
+// try the string literal '15'
+status = inSection(2);
+actual  = str.replace (re, "$1" + '15');
+expect = 'uid=15';
+addThis();
+
+// try a letter before the '15'
+status = inSection(3);
+actual  = str.replace (re, "$1" + 'A15');
+expect = 'uid=A15';
+addThis();
+
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+
+
+function addThis()
+{
+  statusitems[UBound] = status;
+  actualvalues[UBound] = actual;
+  expectedvalues[UBound] = expect;
+  UBound++;
+}
+
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+  for (var i=0; i<UBound; i++)
+  {
+    reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
+  }
+
+  exitFunc ('test');
+}
+
+