diff --git a/dom/media/PeerConnection.js b/dom/media/PeerConnection.js
index cffa3b87dddc..887e89aa7751 100644
--- a/dom/media/PeerConnection.js
+++ b/dom/media/PeerConnection.js
@@ -622,8 +622,8 @@ RTCPeerConnection.prototype = {
 
   dispatchEvent: function(event) {
     // PC can close while events are firing if there is an async dispatch
-    // in c++ land
-    if (!this._closed) {
+    // in c++ land. But let through "closed" signaling and ice connection events.
+    if (!this._closed || this._inClose) {
       this.__DOM_IMPL__.dispatchEvent(event);
     }
   },
@@ -1139,11 +1139,13 @@ RTCPeerConnection.prototype = {
     if (this._closed) {
       return;
     }
+    this._closed = true;
+    this._inClose = true;
     this.changeIceConnectionState("closed");
     this._localIdp.close();
     this._remoteIdp.close();
     this._impl.close();
-    this._closed = true;
+    this._inClose = false;
   },
 
   getLocalStreams: function() {
diff --git a/dom/media/tests/mochitest/test_peerConnection_close.html b/dom/media/tests/mochitest/test_peerConnection_close.html
index d32d7ad4ecd8..60ea634e530c 100644
--- a/dom/media/tests/mochitest/test_peerConnection_close.html
+++ b/dom/media/tests/mochitest/test_peerConnection_close.html
@@ -29,6 +29,16 @@
       is(pc.signalingState, "closed", "signalingState is 'closed'");
       is(pc.iceConnectionState, "closed", "iceConnectionState is 'closed'");
 
+      // test that pc is really closed (and doesn't crash, bug 1259728)
+      try {
+        pc.getLocalStreams();
+      } catch (e) {
+        exception = e;
+      }
+      is(exception && exception.name, "InvalidStateError",
+         "pc.getLocalStreams should throw when closed");
+      exception = null;
+
       try {
         pc.close();
       } catch (e) {