diff --git a/extensions/page-holder.c b/extensions/page-holder.c
index 7d3032bd..9ceb1963 100644
--- a/extensions/page-holder.c
+++ b/extensions/page-holder.c
@@ -13,6 +13,11 @@
 
 #define STOCK_PAGE_HOLDER "page-holder"
 
+static void
+page_holder_app_add_browser_cb (MidoriApp*       app,
+                                MidoriBrowser*   browser,
+                                MidoriExtension* extension);
+
 static gint
 page_holder_notebook_append_view (GtkWidget* notebook)
 {
@@ -68,7 +73,13 @@ static void
 page_holder_deactivate_cb (MidoriExtension* extension,
                            GtkWidget*       notebook)
 {
+    MidoriApp* app = midori_extension_get_app (extension);
+
     gtk_widget_destroy (notebook);
+    g_signal_handlers_disconnect_by_func (
+        extension, page_holder_deactivate_cb, notebook);
+    g_signal_handlers_disconnect_by_func (
+        app, page_holder_app_add_browser_cb, extension);
 }
 
 static void
diff --git a/extensions/statusbar-features.c b/extensions/statusbar-features.c
index 8362a4e9..d4792299 100644
--- a/extensions/statusbar-features.c
+++ b/extensions/statusbar-features.c
@@ -11,13 +11,22 @@
 
 #include <midori/midori.h>
 
+static void
+statusbar_features_app_add_browser_cb (MidoriApp*       app,
+                                       MidoriBrowser*   browser,
+                                       MidoriExtension* extension);
+
 static void
 statusbar_features_deactivate_cb (MidoriExtension* extension,
                                   GtkWidget*       bbox)
 {
+    MidoriApp* app = midori_extension_get_app (extension);
+
     gtk_widget_destroy (bbox);
     g_signal_handlers_disconnect_by_func (
         extension, statusbar_features_deactivate_cb, bbox);
+    g_signal_handlers_disconnect_by_func (
+        app, statusbar_features_app_add_browser_cb, extension);
 }
 
 static void