diff --git a/dlls/mshtml/mshtml_private.h b/dlls/mshtml/mshtml_private.h
index 5fed4af2c2f..2cb22da12c1 100644
--- a/dlls/mshtml/mshtml_private.h
+++ b/dlls/mshtml/mshtml_private.h
@@ -666,6 +666,7 @@ void release_nsio(void);
 BOOL install_wine_gecko(BOOL);
 
 HRESULT nsuri_to_url(LPCWSTR,BOOL,BSTR*);
+HRESULT create_doc_uri(HTMLWindow*,WCHAR*,nsIWineURI**);
 
 HRESULT hlink_frame_navigate(HTMLDocument*,LPCWSTR,nsIInputStream*,DWORD);
 HRESULT navigate_url(HTMLWindow*,const WCHAR*,const WCHAR*);
diff --git a/dlls/mshtml/navigate.c b/dlls/mshtml/navigate.c
index 66be2fc2d36..a68987dde85 100644
--- a/dlls/mshtml/navigate.c
+++ b/dlls/mshtml/navigate.c
@@ -1236,6 +1236,10 @@ HRESULT hlink_frame_navigate(HTMLDocument *doc, LPCWSTR url,
 HRESULT navigate_url(HTMLWindow *window, const WCHAR *new_url, const WCHAR *base_url)
 {
     WCHAR url[INTERNET_MAX_URL_LENGTH];
+    nsIWebNavigation *web_navigation;
+    nsIDocShell *doc_shell;
+    nsIWineURI *uri;
+    nsresult nsres;
     HRESULT hres;
 
     if(!new_url) {
@@ -1262,9 +1266,38 @@ HRESULT navigate_url(HTMLWindow *window, const WCHAR *new_url, const WCHAR *base
         }
     }
 
-    hres = hlink_frame_navigate(&window->doc->basedoc, url, NULL, 0);
-    if(FAILED(hres))
-        FIXME("hlink_frame_navigate failed: %08x\n", hres);
+    if(window->doc_obj && window == window->doc_obj->basedoc.window) {
+        hres = hlink_frame_navigate(&window->doc->basedoc, url, NULL, 0);
+        if(SUCCEEDED(hres))
+            return S_OK;
+        TRACE("hlink_frame_navigate failed: %08x\n", hres);
+    }
 
-    return hres;
+    nsres = get_nsinterface((nsISupports*)window->nswindow, &IID_nsIWebNavigation, (void**)&web_navigation);
+    if(NS_FAILED(nsres)) {
+        ERR("Could not get nsIWebNavigation interface: %08x\n", nsres);
+        return E_FAIL;
+    }
+
+    nsres = nsIWebNavigation_QueryInterface(web_navigation, &IID_nsIDocShell, (void**)&doc_shell);
+    nsIWebNavigation_Release(web_navigation);
+    if(NS_FAILED(nsres)) {
+        ERR("Could not get nsIDocShell: %08x\n", nsres);
+        return E_FAIL;
+    }
+
+    hres = create_doc_uri(window, url, &uri);
+    if(FAILED(hres)) {
+        nsIDocShell_Release(doc_shell);
+        return hres;
+    }
+
+    nsres = nsIDocShell_LoadURI(doc_shell, (nsIURI*)uri, NULL, 0, FALSE);
+    nsIDocShell_Release(doc_shell);
+    if(NS_FAILED(nsres)) {
+        WARN("LoadURI failed: %08x\n", nsres);
+        return E_FAIL;
+    }
+
+    return S_OK;
 }
diff --git a/dlls/mshtml/nsiface.idl b/dlls/mshtml/nsiface.idl
index 9d0bb309dbd..3612613652c 100644
--- a/dlls/mshtml/nsiface.idl
+++ b/dlls/mshtml/nsiface.idl
@@ -142,6 +142,14 @@ typedef nsISupports nsIStyleSheet;
 typedef nsISupports nsIStyleRule;
 typedef nsISupports nsIVariant;
 typedef nsISupports nsIDOMUserDataHandler;
+typedef nsISupports nsIDocShellLoadInfo;
+typedef nsISupports nsISHEntry;
+typedef nsISupports nsIPresShell;
+typedef nsISupports nsIContentViewer;
+typedef nsISupports nsIDocumentCharsetInfo;
+typedef nsISupports nsILayoutHistoryState;
+typedef nsISupports nsISecureBrowserUI;
+typedef nsISupports nsIDOMStorage;
 
 [
     object,
@@ -2650,6 +2658,88 @@ interface nsIHTMLEditor : nsISupports
     nsresult SetReturnInParagraphCreatesNewParagraph([in] PRBool prb);
 }
 
+[
+    object,
+    uuid(8adfb831-1053-4a19-884d-bcdad7277b4b),
+    local
+    /* NOT_FROZEN */
+]
+interface nsIDocShell : nsISupports
+{
+    nsresult LoadURI(nsIURI *uri, nsIDocShellLoadInfo *loadInfo, PRUint32 aLoadFlags, PRBool firstParty);
+    nsresult LoadStream(nsIInputStream *aStream, nsIURI *aURI, const nsACString *aContentType,
+            const nsACString *aContentCharset, nsIDocShellLoadInfo *aLoadInfo);
+    nsresult InternalLoad(nsIURI *aURI, nsIURI *aReferrer, nsISupports *aOwner, PRUint32 aFlags, const PRUnichar *aWindowTarget,
+            const char *aTypeHint, nsIInputStream *aPostDataStream, nsIInputStream *aHeadersStream, PRUint32 aLoadFlags,
+            nsISHEntry *aSHEntry, PRBool firstParty, nsIDocShell **aDocShell, nsIRequest **aRequest);
+    nsresult CreateLoadInfo(nsIDocShellLoadInfo **loadInfo);
+    nsresult PrepareForNewContentModel();
+    nsresult SetCurrentURI(nsIURI *aURI);
+    nsresult FirePageHideNotification(PRBool isUnload);
+    nsresult GetPresContext(void /*nsPresContext*/ **aPresContext);
+    nsresult GetPresShell(nsIPresShell **aPresShell);
+    nsresult GetEldestPresShell(nsIPresShell **aEldestPresShell);
+    nsresult GetContentViewer(nsIContentViewer **aContentViewer);
+    nsresult GetChromeEventHandler(nsIDOMEventTarget **aChromeEventHandler);
+    nsresult SetChromeEventHandler(nsIDOMEventTarget *aChromeEventHandler);
+    nsresult GetDocumentCharsetInfo(nsIDocumentCharsetInfo **aDocumentCharsetInfo);
+    nsresult SetDocumentCharsetInfo(nsIDocumentCharsetInfo *aDocumentCharsetInfo);
+    nsresult GetAllowPlugins(PRBool *aAllowPlugins);
+    nsresult SetAllowPlugins(PRBool aAllowPlugins);
+    nsresult GetAllowJavascript(PRBool *aAllowJavascript);
+    nsresult SetAllowJavascript(PRBool aAllowJavascript);
+    nsresult GetAllowMetaRedirects(PRBool *aAllowMetaRedirects);
+    nsresult SetAllowMetaRedirects(PRBool aAllowMetaRedirects);
+    nsresult GetAllowSubframes(PRBool *aAllowSubframes);
+    nsresult SetAllowSubframes(PRBool aAllowSubframes);
+    nsresult GetAllowImages(PRBool *aAllowImages);
+    nsresult SetAllowImages(PRBool aAllowImages);
+    nsresult GetAllowDNSPrefetch(PRBool *aAllowDNSPrefetch);
+    nsresult SetAllowDNSPrefetch(PRBool aAllowDNSPrefetch);
+    nsresult GetDocShellEnumerator(PRInt32 aItemType, PRInt32 aDirection, nsISimpleEnumerator **_retval);
+    nsresult GetAppType(PRUint32 *aAppType);
+    nsresult SetAppType(PRUint32 aAppType);
+    nsresult GetAllowAuth(PRBool *aAllowAuth);
+    nsresult SetAllowAuth(PRBool aAllowAuth);
+    nsresult GetZoom(float *aZoom);
+    nsresult SetZoom(float aZoom);
+    nsresult GetMarginWidth(PRInt32 *aMarginWidth);
+    nsresult SetMarginWidth(PRInt32 aMarginWidth);
+    nsresult GetMarginHeight(PRInt32 *aMarginHeight);
+    nsresult SetMarginHeight(PRInt32 aMarginHeight);
+    nsresult TabToTreeOwner(PRBool forward, PRBool *tookFocus);
+    nsresult GetBusyFlags(PRUint32 *aBusyFlags);
+    nsresult GetLoadType(PRUint32 *aLoadType);
+    nsresult SetLoadType(PRUint32 aLoadType);
+    nsresult IsBeingDestroyed(PRBool *_retval);
+    nsresult GetIsExecutingOnLoadHandler(PRBool *aIsExecutingOnLoadHandler);
+    nsresult GetLayoutHistoryState(nsILayoutHistoryState **aLayoutHistoryState);
+    nsresult SetLayoutHistoryState(nsILayoutHistoryState *aLayoutHistoryState);
+    nsresult GetShouldSaveLayoutState(PRBool *aShouldSaveLayoutState);
+    nsresult GetSecurityUI(nsISecureBrowserUI **aSecurityUI);
+    nsresult SetSecurityUI(nsISecureBrowserUI *aSecurityUI);
+    nsresult SuspendRefreshURIs();
+    nsresult ResumeRefreshURIs();
+    nsresult BeginRestore(nsIContentViewer *viewer, PRBool top);
+    nsresult FinishRestore();
+    nsresult GetRestoringDocument(PRBool *aRestoringDocument);
+    nsresult GetUseErrorPages(PRBool *aUseErrorPages);
+    nsresult SetUseErrorPages(PRBool aUseErrorPages);
+    nsresult GetPreviousTransIndex(PRInt32 *aPreviousTransIndex);
+    nsresult GetLoadedTransIndex(PRInt32 *aLoadedTransIndex);
+    nsresult HistoryPurged(PRInt32 numEntries);
+    nsresult GetSessionStorageForURI(nsIURI *uri, nsIDOMStorage **_retval);
+    nsresult GetSessionStorageForPrincipal(nsIPrincipal *principal, PRBool create, nsIDOMStorage **_retval);
+    nsresult AddSessionStorage(nsIPrincipal *principal, nsIDOMStorage *storage);
+    nsresult GetCurrentDocumentChannel(nsIChannel * *aCurrentDocumentChannel);
+    nsresult SetChildOffset(PRUint32 offset);
+    nsresult GetIsInUnload(PRBool *aIsInUnload);
+    nsresult GetChannelIsUnsafe(PRBool *aChannelIsUnsafe);
+    void DetachEditorFromWindow();
+    nsresult GetIsOffScreenBrowser(PRBool *aIsOffScreenBrowser);
+    nsresult SetIsOffScreenBrowser(PRBool aIsOffScreenBrowser);
+}
+
 [
     object,
     uuid(365d600b-868a-452a-8de8-f46fad8fee53),
diff --git a/dlls/mshtml/nsio.c b/dlls/mshtml/nsio.c
index 3772e61141d..ec214ca9e88 100644
--- a/dlls/mshtml/nsio.c
+++ b/dlls/mshtml/nsio.c
@@ -2365,6 +2365,22 @@ static nsresult create_uri(nsIURI *uri, HTMLWindow *window, NSContainer *contain
     return NS_OK;
 }
 
+HRESULT create_doc_uri(HTMLWindow *window, WCHAR *url, nsIWineURI **ret)
+{
+    nsIWineURI *uri;
+    nsresult nsres;
+
+    nsres = create_uri(NULL, window, window->doc_obj->nscontainer, &uri);
+    if(NS_FAILED(nsres))
+        return E_FAIL;
+
+    nsIWineURI_SetWineURL(uri, url);
+    nsIWineURI_SetIsDocumentURI(uri, TRUE);
+
+    *ret = uri;
+    return S_OK;
+}
+
 typedef struct {
     const nsIProtocolHandlerVtbl  *lpProtocolHandlerVtbl;