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diff --git a/dom/media/webrtc/tests/mochitests/test_peerConnection_addtrack_removetrack_events.html b/dom/media/webrtc/tests/mochitests/test_peerConnection_addtrack_removetrack_events.html
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+++ b/dom/media/webrtc/tests/mochitests/test_peerConnection_addtrack_removetrack_events.html
@@ -0,0 +1,75 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <script type="application/javascript" src="pc.js"></script>
+</head>
+<body>
+<pre id="test">
+<script type="application/javascript">
+"use strict";
+
+createHTML({
+  title: "MediaStream's 'addtrack' and 'removetrack' events with gUM",
+  bug: "1208328"
+});
+
+runNetworkTest(function (options) {
+  let test = new PeerConnectionTest(options);
+  let eventsPromise;
+  addRenegotiation(test.chain,
+    [
+      function PC_LOCAL_SWAP_VIDEO_TRACKS(test) {
+        return getUserMedia({video: true}).then(stream => {
+          var videoTransceiver = test.pcLocal._pc.getTransceivers()[1];
+          is(videoTransceiver.currentDirection, "sendonly",
+             "Video transceiver's current direction is sendonly");
+          is(videoTransceiver.direction, "sendrecv",
+             "Video transceiver's desired direction is sendrecv");
+
+          const localStream = test.pcLocal._pc.getLocalStreams()[0];
+          ok(localStream, "Should have local stream");
+
+          const remoteStream = test.pcRemote._pc.getRemoteStreams()[0];
+          ok(remoteStream, "Should have remote stream");
+
+          const newTrack = stream.getTracks()[0];
+
+          const videoSenderIndex =
+            test.pcLocal._pc.getSenders().findIndex(s => s.track.kind == "video");
+          isnot(videoSenderIndex, -1, "Should have video sender");
+
+          test.pcLocal.removeSender(videoSenderIndex);
+          is(videoTransceiver.direction, "recvonly",
+             "Video transceiver should be recvonly after removeTrack");
+          test.pcLocal.attachLocalTrack(stream.getTracks()[0], localStream);
+          is(videoTransceiver.direction, "recvonly",
+             "Video transceiver should be recvonly after addTrack");
+
+          eventsPromise = haveEvent(remoteStream, "addtrack",
+              wait(50000, new Error("No addtrack event for " + newTrack.id)))
+            .then(trackEvent => {
+              ok(trackEvent instanceof MediaStreamTrackEvent,
+                 "Expected event to be instance of MediaStreamTrackEvent");
+              is(trackEvent.type, "addtrack",
+                 "Expected addtrack event type");
+              is(trackEvent.track.readyState, "live",
+                 "added track should be live");
+            })
+            .then(() => haveNoEvent(remoteStream, "addtrack"));
+        });
+      },
+    ],
+    [
+      function PC_REMOTE_CHECK_EVENTS(test) {
+        return eventsPromise;
+      },
+    ]
+  );
+
+  test.setMediaConstraints([{audio: true, video: true}], []);
+  return test.run();
+});
+</script>
+</pre>
+</body>
+</html>