diff --git a/tests/wpt/mozilla/meta/MANIFEST.json b/tests/wpt/mozilla/meta/MANIFEST.json
index 36de1f76640..64b128a17f9 100644
--- a/tests/wpt/mozilla/meta/MANIFEST.json
+++ b/tests/wpt/mozilla/meta/MANIFEST.json
@@ -5679,6 +5679,12 @@
             "url": "/_mozilla/mozilla/load_event.html"
           }
         ],
+        "mozilla/mozbrowser/iframe_goback.html": [
+          {
+            "path": "mozilla/mozbrowser/iframe_goback.html",
+            "url": "/_mozilla/mozilla/mozbrowser/iframe_goback.html"
+          }
+        ],
         "mozilla/mozbrowser/mozbrowsericonchange_event.html": [
           {
             "path": "mozilla/mozbrowser/mozbrowsericonchange_event.html",
diff --git a/tests/wpt/mozilla/tests/mozilla/mozbrowser/iframe_goback.html b/tests/wpt/mozilla/tests/mozilla/mozbrowser/iframe_goback.html
new file mode 100644
index 00000000000..518bb3d5a47
--- /dev/null
+++ b/tests/wpt/mozilla/tests/mozilla/mozbrowser/iframe_goback.html
@@ -0,0 +1,37 @@
+<head>
+<title>iframe.goBack()</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+</head>
+<body>
+<script>
+
+async_test(function(t) {
+
+  var url2 = "data:,a";
+  var url1 = `data:text/html,<script>setTimeout(() => location.assign("${url2}"), 0)</${"script"}>`;
+
+  var locations = []
+  var expected_locations = [url1, url2, url1];
+
+  var iframe = document.createElement("iframe");
+  iframe.mozbrowser = "true";
+  iframe.src = url1;
+
+  iframe.addEventListener("mozbrowserlocationchange", e => {
+    locations.push(e.detail);
+    if (e.detail == url2) {
+      iframe.goBack();
+    }
+    if (locations.length == expected_locations.length) {
+       assert_array_equals(locations, expected_locations);
+       t.done();
+    }
+  });
+
+  document.body.appendChild(iframe);
+
+});
+
+</script>
+</body>
