diff --git a/content/svg/content/src/nsSVGAElement.cpp b/content/svg/content/src/nsSVGAElement.cpp
index 53f9fa2edc4..5e6e663f05b 100644
--- a/content/svg/content/src/nsSVGAElement.cpp
+++ b/content/svg/content/src/nsSVGAElement.cpp
@@ -63,11 +63,12 @@ NS_IMPL_RELEASE_INHERITED(nsSVGAElement, nsSVGAElementBase)
 DOMCI_NODE_DATA(SVGAElement, nsSVGAElement)
 
 NS_INTERFACE_TABLE_HEAD(nsSVGAElement)
-  NS_NODE_INTERFACE_TABLE6(nsSVGAElement,
+  NS_NODE_INTERFACE_TABLE7(nsSVGAElement,
                            nsIDOMNode,
                            nsIDOMElement,
                            nsIDOMSVGElement,
                            nsIDOMSVGAElement,
+                           nsIDOMSVGURIReference,
                            nsILink,
                            Link)
   NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(SVGAElement)
diff --git a/content/svg/content/test/Makefile.in b/content/svg/content/test/Makefile.in
index c3b538878fc..2ed481e8a16 100644
--- a/content/svg/content/test/Makefile.in
+++ b/content/svg/content/test/Makefile.in
@@ -83,6 +83,12 @@ _TEST_FILES = \
 		test_viewport.html \
 		zoom-helper.svg \
 		test_zoom.xhtml \
+		test_a_href_01.xhtml \
+		test_a_href_02.xhtml \
+		a_href_destination.svg \
+		a_href_helper_01.svg \
+		a_href_helper_02_03.svg \
+		a_href_helper_04.svg \
 		$(NULL)
 
 libs:: $(_TEST_FILES)
diff --git a/content/svg/content/test/a_href_destination.svg b/content/svg/content/test/a_href_destination.svg
new file mode 100644
index 00000000000..43e4c812f4b
--- /dev/null
+++ b/content/svg/content/test/a_href_destination.svg
@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg">
+  <rect width="100%" height="100%" fill="green"/>
+</svg>
diff --git a/content/svg/content/test/a_href_helper_01.svg b/content/svg/content/test/a_href_helper_01.svg
new file mode 100644
index 00000000000..8f33cea4049
--- /dev/null
+++ b/content/svg/content/test/a_href_helper_01.svg
@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+  <a id="a" xlink:href="a_href_destination.svg">
+    <rect width="100%" height="100%"/>
+  </a>
+</svg>
diff --git a/content/svg/content/test/a_href_helper_02_03.svg b/content/svg/content/test/a_href_helper_02_03.svg
new file mode 100644
index 00000000000..af4b7e27360
--- /dev/null
+++ b/content/svg/content/test/a_href_helper_02_03.svg
@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+  <a id="a" xlink:href="initial.svg">
+    <rect width="100%" height="100%"/>
+  </a>
+</svg>
diff --git a/content/svg/content/test/a_href_helper_04.svg b/content/svg/content/test/a_href_helper_04.svg
new file mode 100644
index 00000000000..50aca288987
--- /dev/null
+++ b/content/svg/content/test/a_href_helper_04.svg
@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+  <a id="a" xlink:href="initial.svg">
+    <set attributeName="xlink:href" to="a_href_destination.svg"/>
+    <rect width="100%" height="100%"/>
+  </a>
+</svg>
diff --git a/content/svg/content/test/test_a_href_01.xhtml b/content/svg/content/test/test_a_href_01.xhtml
new file mode 100644
index 00000000000..0579030f0a2
--- /dev/null
+++ b/content/svg/content/test/test_a_href_01.xhtml
@@ -0,0 +1,92 @@
+<html xmlns="http://www.w3.org/1999/xhtml">
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=620295
+-->
+<head>
+  <title>Test that activating SVG 'a' elements navigate to their xlink:href</title>
+  <script type="text/javascript" src="/MochiKit/packed.js"></script>
+  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=620295">Mozilla Bug 620295</a>
+<p id="display"></p>
+<div id="content" style="visibility: hidden">
+<iframe id="iframe1" src="a_href_helper_01.svg" onload="frameLoaded()"></iframe>
+<iframe id="iframe2" src="a_href_helper_02_03.svg" onload="frameLoaded()"></iframe>
+<iframe id="iframe3" src="a_href_helper_02_03.svg" onload="frameLoaded()"></iframe>
+<iframe id="iframe4" src="a_href_helper_04.svg" onload="frameLoaded()"></iframe>
+</div>
+<pre id="test">
+<script class="testbody" type="text/javascript"><![CDATA[
+
+SimpleTest.waitForExplicitFinish();
+
+var testCount = 4;
+var didWindowLoad = false;
+var frameLoadCount = 0;
+var navigationCount = 0;
+
+function endsWith(s1, s2) {
+  s1 = String(s1);
+  return s1.length >= s2.length && s1.substring(s1.length - s2.length) == s2;
+}
+
+function windowLoaded() {
+  didWindowLoad = true;
+  doNavigationIfReady();
+}
+
+function frameLoaded() {
+  frameLoadCount++;
+  doNavigationIfReady();
+}
+
+function doNavigationIfReady() {
+  if (didWindowLoad && frameLoadCount == testCount) {
+    doNavigation();
+  }
+}
+
+function doNavigation() {
+  netscape.security.PrivilegeManager.enablePrivilege("UniversalBrowserWrite");
+
+  // Test clicking on an unmodified <a>.
+  doNavigationTest(1, "a_href_helper_01.svg");
+  // Test clicking on an <a> whose xlink:href is modified by assigning to href.baseVal.
+  doNavigationTest(2, "a_href_helper_02_03.svg", function(a) { a.href.baseVal = "a_href_destination.svg"; });
+  // Test clicking on an <a> whose xlink:href is modified by a setAttributeNS call.
+  doNavigationTest(3, "a_href_helper_02_03.svg", function(a) { a.setAttributeNS("http://www.w3.org/1999/xlink", "xlink:href", "a_href_destination.svg"); });
+  // Test clicking on an <a> whose xlink:href is modified by animation.
+  doNavigationTest(4, "a_href_helper_04.svg");
+}
+
+function doNavigationTest(testNumber, initialHref, f) {
+  var iframe = document.getElementById("iframe" + testNumber);
+  var a = iframe.contentDocument.getElementById("a");
+  ok(endsWith(iframe.contentWindow.location, initialHref), "Initial href of test " + testNumber);
+  iframe.onload = function() {
+    ok(endsWith(iframe.contentWindow.location, "a_href_destination.svg"), "Final href of test " + testNumber);
+    if (++navigationCount == testCount) {
+      SimpleTest.finish();
+    }
+  };
+  if (f) {
+    f(a);
+  }
+  dispatchClickEvent(a);
+}
+
+function dispatchClickEvent(element) {
+  var event = element.ownerDocument.createEvent("MouseEvent");
+  event.initMouseEvent("click", true, true, element.ownerDocument.defaultView, 1, 0, 0, 0, 0, false, false,
+                       false, false, 0, null);
+  element.dispatchEvent(event);
+}
+
+window.onload = windowLoaded;
+
+]]></script>
+</pre>
+</body>
+</html>
diff --git a/content/svg/content/test/test_a_href_02.xhtml b/content/svg/content/test/test_a_href_02.xhtml
new file mode 100644
index 00000000000..ca8a84cc046
--- /dev/null
+++ b/content/svg/content/test/test_a_href_02.xhtml
@@ -0,0 +1,38 @@
+<html xmlns="http://www.w3.org/1999/xhtml">
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=620295
+-->
+<head>
+  <title>Test that the href property reflects xlink:href="" on 'a' elements</title>
+  <script type="text/javascript" src="/MochiKit/packed.js"></script>
+  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=620295">Mozilla Bug 620295</a>
+<p id="display"></p>
+<div id="content">
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+  <a id="a" xlink:href="a"/>
+</svg>
+</div>
+<pre id="test">
+<script><![CDATA[
+
+var a = document.getElementById("a");
+
+// Initial attribute value should be reflected in the href property
+is(a.href.baseVal, "a", "Initial property value");
+
+// Updated attribute value should be reflected in the href property
+a.setAttributeNS("http://www.w3.org/1999/xlink", "xlink:href", "b");
+is(a.href.baseVal, "b", "Updated property value");
+
+// Modifying the href property should cause the attribute to be updated
+a.href.baseVal = "c";
+is(a.getAttributeNS("http://www.w3.org/1999/xlink", "href"), "c", "Updated attribute value");
+
+]]></script>
+</pre>
+</body>
+</html>
diff --git a/dom/base/nsDOMClassInfo.cpp b/dom/base/nsDOMClassInfo.cpp
index b35bf93be12..c75263d5f61 100644
--- a/dom/base/nsDOMClassInfo.cpp
+++ b/dom/base/nsDOMClassInfo.cpp
@@ -3055,6 +3055,7 @@ nsDOMClassInfo::Init()
 
   DOM_CLASSINFO_MAP_BEGIN(SVGAElement, nsIDOMSVGAElement)
     DOM_CLASSINFO_MAP_ENTRY(nsIDOMSVGAElement)
+    DOM_CLASSINFO_MAP_ENTRY(nsIDOMSVGURIReference)
     DOM_CLASSINFO_SVG_GRAPHIC_ELEMENT_MAP_ENTRIES
   DOM_CLASSINFO_MAP_END
 
