--- a/dom/base/nsDOMWindowUtils.cpp
+++ b/dom/base/nsDOMWindowUtils.cpp
@@ -3082,33 +3082,16 @@ nsDOMWindowUtils::GetDisplayDPI(float *a
   if (!widget)
     return NS_ERROR_FAILURE;
 
   *aDPI = widget->GetDPI();
 
   return NS_OK;
 }
 
-
-NS_IMETHODIMP
-nsDOMWindowUtils::GetOuterWindowWithId(uint64_t aWindowID,
-                                       nsIDOMWindow** aWindow)
-{
-  // XXX This method is deprecated.  See bug 865664.
-  nsContentUtils::ReportToConsole(nsIScriptError::warningFlag,
-                                  NS_LITERAL_CSTRING("DOM"),
-                                  nsContentUtils::GetDocumentFromCaller(),
-                                  nsContentUtils::eDOM_PROPERTIES,
-                                  "GetWindowWithOuterIdWarning");
-
-  *aWindow = nsGlobalWindow::GetOuterWindowWithId(aWindowID);
-  NS_IF_ADDREF(*aWindow);
-  return NS_OK;
-}
-
 NS_IMETHODIMP
 nsDOMWindowUtils::GetContainerElement(nsIDOMElement** aResult)
 {
   nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
   NS_ENSURE_STATE(window);
 
   nsCOMPtr<nsIDOMElement> element =
     do_QueryInterface(window->GetFrameElementInternal());

--- a/dom/interfaces/base/nsIDOMWindowUtils.idl
+++ b/dom/interfaces/base/nsIDOMWindowUtils.idl
@@ -1483,22 +1483,16 @@ interface nsIDOMWindowUtils : nsISupport
                              [retval, array, size_is(frameCount)] out float frameIntervals);
 
   /**
    * The DPI of the display
    */
   readonly attribute float displayDPI;
 
   /**
-   * Return the outer window with the given ID, if any.  Can return null.
-   * @deprecated Use nsIWindowMediator.getOuterWindowWithId.  See bug 865664.
-   */
-  nsIDOMWindow getOuterWindowWithId(in unsigned long long aOuterWindowID);
-
-  /**
    * Return this window's frame element.
    * Ignores all chrome/content or mozbrowser boundaries.
    */
   readonly attribute nsIDOMElement containerElement;
 
   [noscript] void RenderDocument(in nsConstRect aRect,
                                  in uint32_t aFlags,
                                  in nscolor aBackgroundColor,

--- a/dom/locales/en-US/chrome/dom/dom.properties
+++ b/dom/locales/en-US/chrome/dom/dom.properties
@@ -157,18 +157,16 @@ PluginHangUITitle=Warning: Unresponsive 
 PluginHangUIMessage=%S may be busy, or it may have stopped responding. You can stop the plugin now, or you can continue to see if the plugin will complete.
 PluginHangUIWaitButton=Continue
 PluginHangUIStopButton=Stop plugin
 PrefixedFullscreenAPIWarning=Prefixed Fullscreen API is deprecated. Please use unprefixed API for fullscreen. For more help https://developer.mozilla.org/en-US/docs/Web/API/Fullscreen_API
 # LOCALIZATION NOTE: Do not translate "NodeIterator" or "detach()".
 NodeIteratorDetachWarning=Calling detach() on a NodeIterator no longer has an effect.
 # LOCALIZATION NOTE: Do not translate "LenientThis" and "this"
 LenientThisWarning=Ignoring get or set of property that has [LenientThis] because the “this” object is incorrect.
-# LOCALIZATION NOTE: Do not translate "nsIDOMWindowUtils", "getWindowWithOuterId", or "nsIWindowMediator"
-GetWindowWithOuterIdWarning=Use of nsIDOMWindowUtils.getOuterWindowWithId() is deprecated.  Instead, use the nsIWindowMediator method of the same name.
 # LOCALIZATION NOTE: Do not translate "getPreventDefault" or "defaultPrevented".
 GetPreventDefaultWarning=Use of getPreventDefault() is deprecated.  Use defaultPrevented instead.
 # LOCALIZATION NOTE: Do not translate "getUserData", "setUserData", "WeakMap", or "element.dataset".
 GetSetUserDataWarning=Use of getUserData() or setUserData() is deprecated.  Use WeakMap or element.dataset instead.
 # LOCALIZATION NOTE: Do not translate "mozGetAsFile" or "toBlob"
 MozGetAsFileWarning=The non-standard mozGetAsFile method is deprecated and will soon be removed.  Use the standard toBlob method instead.
 # LOCALIZATION NOTE: Do not translate "captureEvents()" or "addEventListener()"
 UseOfCaptureEventsWarning=Use of captureEvents() is deprecated. To upgrade your code, use the DOM 2 addEventListener() method. For more help http://developer.mozilla.org/en/docs/DOM:element.addEventListener