--- a/content/events/public/nsIPrivateDOMEvent.h
+++ b/content/events/public/nsIPrivateDOMEvent.h
@@ -139,9 +139,11 @@ NS_NewDOMAnimationEvent(nsIDOMEvent** aI
 nsresult
 NS_NewDOMCloseEvent(nsIDOMEvent** aInstancePtrResult, nsPresContext* aPresContext, class nsEvent* aEvent);
 nsresult
 NS_NewDOMMozTouchEvent(nsIDOMEvent** aInstancePtrResult, nsPresContext* aPresContext, class nsMozTouchEvent* aEvent);
 nsresult
 NS_NewDOMTouchEvent(nsIDOMEvent** aInstancePtrResult, nsPresContext* aPresContext, class nsInputEvent *aEvent);
 nsresult
 NS_NewDOMCustomEvent(nsIDOMEvent** aInstancePtrResult, nsPresContext* aPresContext, nsEvent* aEvent);
+nsresult
+NS_NewDOMSmsEvent(nsIDOMEvent** aInstancePtrResult, nsPresContext* aPresContext, nsEvent* aEvent);
 #endif // nsIPrivateDOMEvent_h__

--- a/content/events/src/nsEventDispatcher.cpp
+++ b/content/events/src/nsEventDispatcher.cpp
@@ -899,11 +899,13 @@ nsEventDispatcher::CreateEvent(nsPresCon
     return NS_NewDOMCloseEvent(aDOMEvent, aPresContext, nsnull);
   if (aEventType.LowerCaseEqualsLiteral("touchevent") &&
       nsDOMTouchEvent::PrefEnabled())
     return NS_NewDOMTouchEvent(aDOMEvent, aPresContext, nsnull);
   if (aEventType.LowerCaseEqualsLiteral("hashchangeevent"))
     return NS_NewDOMHashChangeEvent(aDOMEvent, aPresContext, nsnull);
   if (aEventType.LowerCaseEqualsLiteral("customevent"))
     return NS_NewDOMCustomEvent(aDOMEvent, aPresContext, nsnull);
+  if (aEventType.LowerCaseEqualsLiteral("mozsmsevent"))
+    return NS_NewDOMSmsEvent(aDOMEvent, aPresContext, nsnull);
 
   return NS_ERROR_DOM_NOT_SUPPORTED_ERR;
 }

--- a/dom/base/nsDOMClassInfo.cpp
+++ b/dom/base/nsDOMClassInfo.cpp
@@ -508,16 +508,17 @@
 
 #include "nsWrapperCacheInlines.h"
 #include "dombindings.h"
 
 #include "nsIDOMBatteryManager.h"
 #include "BatteryManager.h"
 #include "nsIDOMSmsManager.h"
 #include "nsIDOMSmsMessage.h"
+#include "nsIDOMSmsEvent.h"
 
 using namespace mozilla;
 using namespace mozilla::dom;
 
 static NS_DEFINE_CID(kDOMSOF_CID, NS_DOM_SCRIPT_OBJECT_FACTORY_CID);
 
 static const char kDOMStringBundleURL[] =
   "chrome://global/locale/dom/dom.properties";
@@ -1391,16 +1392,19 @@ static nsDOMClassInfoData sClassInfoData
                            DOM_DEFAULT_SCRIPTABLE_FLAGS)
 
   NS_DEFINE_CLASSINFO_DATA(MozSmsManager, nsDOMGenericSH,
                            DOM_DEFAULT_SCRIPTABLE_FLAGS)
 
   NS_DEFINE_CLASSINFO_DATA(MozSmsMessage, nsDOMGenericSH,
                            DOM_DEFAULT_SCRIPTABLE_FLAGS)
 
+  NS_DEFINE_CLASSINFO_DATA(MozSmsEvent, nsDOMGenericSH,
+                           DOM_DEFAULT_SCRIPTABLE_FLAGS)
+
   NS_DEFINE_CLASSINFO_DATA(CSSFontFaceRule, nsDOMGenericSH,
                            DOM_DEFAULT_SCRIPTABLE_FLAGS)
   NS_DEFINE_CLASSINFO_DATA(CSSFontFaceStyleDecl, nsCSSStyleDeclSH,
                            ARRAY_SCRIPTABLE_FLAGS)
 
 #if defined(MOZ_MEDIA)
   NS_DEFINE_CLASSINFO_DATA(HTMLVideoElement, nsElementSH,
                            ELEMENT_SCRIPTABLE_FLAGS)
@@ -3883,16 +3887,21 @@ nsDOMClassInfo::Init()
   DOM_CLASSINFO_MAP_BEGIN(MozSmsManager, nsIDOMMozSmsManager)
      DOM_CLASSINFO_MAP_ENTRY(nsIDOMMozSmsManager)
   DOM_CLASSINFO_MAP_END
 
   DOM_CLASSINFO_MAP_BEGIN(MozSmsMessage, nsIDOMMozSmsMessage)
      DOM_CLASSINFO_MAP_ENTRY(nsIDOMMozSmsMessage)
   DOM_CLASSINFO_MAP_END
 
+  DOM_CLASSINFO_MAP_BEGIN(MozSmsEvent, nsIDOMMozSmsEvent)
+     DOM_CLASSINFO_MAP_ENTRY(nsIDOMMozSmsEvent)
+     DOM_CLASSINFO_EVENT_MAP_ENTRIES
+  DOM_CLASSINFO_MAP_END
+
   DOM_CLASSINFO_MAP_BEGIN(CSSFontFaceRule, nsIDOMCSSFontFaceRule)
     DOM_CLASSINFO_MAP_ENTRY(nsIDOMCSSFontFaceRule)
   DOM_CLASSINFO_MAP_END
 
   DOM_CLASSINFO_MAP_BEGIN_NO_CLASS_IF(CSSFontFaceStyleDecl,
                                       nsIDOMCSSStyleDeclaration)
     DOM_CLASSINFO_MAP_ENTRY(nsIDOMCSSStyleDeclaration)
   DOM_CLASSINFO_MAP_END

--- a/dom/base/nsDOMClassInfoClasses.h
+++ b/dom/base/nsDOMClassInfoClasses.h
@@ -425,16 +425,17 @@ DOMCI_CLASS(GeoPosition)
 DOMCI_CLASS(GeoPositionCoords)
 DOMCI_CLASS(GeoPositionAddress)
 DOMCI_CLASS(GeoPositionError)
 
 DOMCI_CLASS(MozBatteryManager)
 
 DOMCI_CLASS(MozSmsManager)
 DOMCI_CLASS(MozSmsMessage)
+DOMCI_CLASS(MozSmsEvent)
 
 // @font-face in CSS
 DOMCI_CLASS(CSSFontFaceRule)
 DOMCI_CLASS(CSSFontFaceStyleDecl)
 
 #if defined(MOZ_MEDIA)
 // WhatWG Video Element
 DOMCI_CLASS(HTMLVideoElement)

--- a/dom/sms/interfaces/Makefile.in
+++ b/dom/sms/interfaces/Makefile.in
@@ -45,11 +45,12 @@ XPIDL_MODULE = dom_sms
 
 include $(topsrcdir)/dom/dom-config.mk
 
 XPIDLSRCS = \
   nsIDOMNavigatorSms.idl \
   nsIDOMSmsManager.idl \
   nsISmsService.idl \
   nsIDOMSmsMessage.idl \
+  nsIDOMSmsEvent.idl \
   $(NULL)
 
 include $(topsrcdir)/config/rules.mk

new file mode 100644
--- /dev/null
+++ b/dom/sms/interfaces/nsIDOMSmsEvent.idl
@@ -0,0 +1,46 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org.
+ *
+ * The Initial Developer of the Original Code is Mozilla Foundation
+ * Portions created by the Initial Developer are Copyright (C) 2011
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *  Mounir Lamouri <mounir.lamouri@mozilla.com> (Original Author)
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "nsISupports.idl"
+#include "nsIDOMEvent.idl"
+
+interface nsIDOMMozSmsMessage;
+
+[scriptable, uuid(34dda4c3-4683-4323-9ee3-2a7bfef7df3b)]
+interface nsIDOMMozSmsEvent : nsIDOMEvent
+{
+  readonly attribute nsIDOMMozSmsMessage message;
+};

--- a/dom/sms/src/Makefile.in
+++ b/dom/sms/src/Makefile.in
@@ -66,19 +66,21 @@ EXPORTS_mozilla/dom/sms = \
 
 CPPSRCS = \
   SmsManager.cpp \
   SmsService.cpp \
   SmsIPCService.cpp \
   SmsServiceFactory.cpp \
   SmsParent.cpp \
   SmsMessage.cpp \
+  SmsEvent.cpp \
   $(NULL)
 
 LOCAL_INCLUDES = \
+  -I$(topsrcdir)/content/events/src \
   $(NULL)
 
 # Add VPATH to LOCAL_INCLUDES so we are going to include the correct backend
 # subdirectory (and the ipc one).
 LOCAL_INCLUDES += $(VPATH:%=-I%)
 
 include $(topsrcdir)/config/config.mk
 include $(topsrcdir)/ipc/chromium/chromium-config.mk

new file mode 100644
--- /dev/null
+++ b/dom/sms/src/SmsEvent.cpp
@@ -0,0 +1,97 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is Mozilla Foundation
+ * Portions created by the Initial Developer are Copyright (C) 2011
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Mounir Lamouri <mounir.lamouri@mozilla.com> (Original Author)
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "SmsEvent.h"
+#include "nsIDOMClassInfo.h"
+#include "nsIDOMSmsMessage.h"
+
+DOMCI_DATA(MozSmsEvent, mozilla::dom::sms::SmsEvent)
+
+namespace mozilla {
+namespace dom {
+namespace sms {
+
+NS_IMPL_CYCLE_COLLECTION_CLASS(SmsEvent)
+
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(SmsEvent, nsDOMEvent)
+  NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(mMessage)
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(SmsEvent, nsDOMEvent)
+  NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mMessage)
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+NS_IMPL_ADDREF_INHERITED(SmsEvent, nsDOMEvent)
+NS_IMPL_RELEASE_INHERITED(SmsEvent, nsDOMEvent)
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(SmsEvent)
+  NS_INTERFACE_MAP_ENTRY(nsIDOMMozSmsEvent)
+  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMMozSmsEvent)
+  NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(MozSmsEvent)
+NS_INTERFACE_MAP_END_INHERITING(nsDOMEvent)
+
+nsresult
+SmsEvent::Init(const nsAString& aEventTypeArg, bool aCanBubbleArg,
+               bool aCancelableArg, nsIDOMMozSmsMessage* aMessage)
+{
+  nsresult rv = nsDOMEvent::InitEvent(aEventTypeArg, aCanBubbleArg,
+                                      aCancelableArg);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  mMessage = aMessage;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+SmsEvent::GetMessage(nsIDOMMozSmsMessage** aMessage)
+{
+  NS_IF_ADDREF(*aMessage = mMessage);
+  return NS_OK;
+}
+
+} // namespace sms
+} // namespace dom
+} // namespace mozilla
+
+nsresult
+NS_NewDOMSmsEvent(nsIDOMEvent** aInstancePtrResult,
+                  nsPresContext* aPresContext,
+                  nsEvent* aEvent)
+{
+  return CallQueryInterface(new mozilla::dom::sms::SmsEvent(aPresContext, aEvent),
+                            aInstancePtrResult);
+}

new file mode 100644
--- /dev/null
+++ b/dom/sms/src/SmsEvent.h
@@ -0,0 +1,77 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is Mozilla Foundation
+ * Portions created by the Initial Developer are Copyright (C) 2011
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Mounir Lamouri <mounir.lamouri@mozilla.com> (Original Author)
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#ifndef mozilla_dom_sms_SmsEvent_h
+#define mozilla_dom_sms_SmsEvent_h
+
+#include "nsIDOMSmsEvent.h"
+#include "nsDOMEvent.h"
+
+class nsIDOMMozSmsMessage;
+
+namespace mozilla {
+namespace dom {
+namespace sms {
+
+class SmsEvent : public nsIDOMMozSmsEvent
+               , public nsDOMEvent
+{
+public:
+  SmsEvent(nsPresContext* aPresContext, nsEvent* aEvent)
+    : nsDOMEvent(aPresContext, aEvent)
+    , mMessage(nsnull)
+  {}
+
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_DECL_NSIDOMMOZSMSEVENT
+
+  NS_FORWARD_TO_NSDOMEVENT
+
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(SmsEvent, nsDOMEvent)
+
+  nsresult Init(const nsAString & aEventTypeArg, bool aCanBubbleArg,
+                bool aCancelableArg, nsIDOMMozSmsMessage* aMessage);
+
+private:
+  nsCOMPtr<nsIDOMMozSmsMessage> mMessage;
+};
+
+} // namespace sms
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_sms_SmsEvent_h

--- a/dom/sms/tests/test_sms_basics.html
+++ b/dom/sms/tests/test_sms_basics.html
@@ -39,16 +39,17 @@ function checkInterface(aInterface) {
 
 function test() {
   var gSmsEnabled = SpecialPowers.getBoolPref("dom.sms.enabled");
   var gSmsWhiteList = SpecialPowers.getCharPref("dom.sms.whitelist");
 
   checkInterface("SmsManager");
   checkInterface("NavigatorSms");
   checkInterface("SmsMessage");
+  checkInterface("SmsEvent");
 
   // If sms are disabled and whitelist is empty, sms is disabled.
   SpecialPowers.setBoolPref("dom.sms.enabled", false);
   SpecialPowers.setCharPref("dom.sms.whitelist", "");
   checkSmsDisabled();
 
   // If sms are enabled and whitelist is empty, sms are disabled.
   SpecialPowers.setBoolPref("dom.sms.enabled", true);