possible fix for 788960

gistfile1.txt

diff --git a/dom/network/src/TCPSocket.js b/dom/network/src/TCPSocket.js
--- a/dom/network/src/TCPSocket.js
+++ b/dom/network/src/TCPSocket.js
@@ -42,16 +42,25 @@ const BUFFER_SIZE = 65536;
 // this file to slightly more readable explanations.
 function createTCPError(aErrorName, aErrorType) {
   let error = Cc["@mozilla.org/dom-error;1"]
                 .createInstance(Ci.nsIDOMDOMError);
   error.wrappedJSObject.init(aErrorName);
   return error;
 }
 
+let Timer = Components.classes["@mozilla.org/timer;1"],
+    nsITimer = Components.interfaces.nsITimer,
+    TYPE_ONE_SHOT = Components.interfaces.nsITimer.TYPE_ONE_SHOT;
+
+function next_turn(func) {
+  Timer.createInstance(
+    nsITimer
+  ).initWithCallback({notify: func}, 0, TYPE_ONE_SHOT);
+}
 
 /*
  * Debug logging function
  */
 
 let debug = true;
 function LOG(msg) {
   if (debug)
@@ -386,45 +395,47 @@ TCPSocket.prototype = {
     if (this._inChild) {
       that._socketBridge = Cc["@mozilla.org/tcp-socket-child;1"]
                              .createInstance(Ci.nsITCPSocketChild);
       that._socketBridge.open(that, host, port, !!that._ssl,
                               that._binaryType, this.useWin, this.useWin || this);
       return that;
     }
 
-    let transport = that._transport = this._createTransport(host, port, that._ssl);
-    transport.setEventSink(that, Services.tm.currentThread);
+    next_turn(function() {
+      let transport = that._transport = that._createTransport(host, port, that._ssl);
+      transport.setEventSink(that, Services.tm.currentThread);
 
-    that._socketInputStream = transport.openInputStream(0, 0, 0);
-    that._socketOutputStream = transport.openOutputStream(
-      Ci.nsITransport.OPEN_UNBUFFERED, 0, 0);
+      that._socketInputStream = transport.openInputStream(0, 0, 0);
+      that._socketOutputStream = transport.openOutputStream(
+        Ci.nsITransport.OPEN_UNBUFFERED, 0, 0);
 
-    // If the other side is not listening, we will
-    // get an onInputStreamReady callback where available
-    // raises to indicate the connection was refused.
-    that._socketInputStream.asyncWait(
-      that, that._socketInputStream.WAIT_CLOSURE_ONLY, 0, Services.tm.currentThread);
+      // If the other side is not listening, we will
+      // get an onInputStreamReady callback where available
+      // raises to indicate the connection was refused.
+      that._socketInputStream.asyncWait(
+        that, that._socketInputStream.WAIT_CLOSURE_ONLY, 0, Services.tm.currentThread);
 
-    if (that._binaryType === "arraybuffer") {
-      that._inputStreamBinary = new BinaryInputStream(that._socketInputStream);
-    } else {
-      that._inputStreamScriptable = new ScriptableInputStream(that._socketInputStream);
-    }
+      if (that._binaryType === "arraybuffer") {
+        that._inputStreamBinary = new BinaryInputStream(that._socketInputStream);
+      } else {
+        that._inputStreamScriptable = new ScriptableInputStream(that._socketInputStream);
+      }
 
-    that._multiplexStream = new MultiplexInputStream();
+      that._multiplexStream = new MultiplexInputStream();
 
-    that._multiplexStreamCopier = new AsyncStreamCopier(
-      that._multiplexStream,
-      that._socketOutputStream,
-      // (nsSocketTransport uses gSocketTransportService)
-      Cc["@mozilla.org/network/socket-transport-service;1"]
-        .getService(Ci.nsIEventTarget),
-      /* source buffered */ true, /* sink buffered */ false,
-      BUFFER_SIZE, /* close source*/ false, /* close sink */ false);
+      that._multiplexStreamCopier = new AsyncStreamCopier(
+        that._multiplexStream,
+        that._socketOutputStream,
+        // (nsSocketTransport uses gSocketTransportService)
+        Cc["@mozilla.org/network/socket-transport-service;1"]
+          .getService(Ci.nsIEventTarget),
+        /* source buffered */ true, /* sink buffered */ false,
+        BUFFER_SIZE, /* close source*/ false, /* close sink */ false);
+    });
 
     return that;
   },
 
   close: function ts_close() {
     if (this._readyState === kCLOSED || this._readyState === kCLOSING)
       return;