--- a/gfx/layers/composite/LayerManagerComposite.cpp
+++ b/gfx/layers/composite/LayerManagerComposite.cpp
@@ -1054,17 +1054,26 @@ public:
   }
 private:
   GLContextEGL* const mContext;
 };
 
 void
 LayerManagerComposite::RenderToPresentationSurface()
 {
+  if (!mCompositor) {
+    return;
+  }
+
   widget::CompositorWidget* const widget = mCompositor->GetWidget();
+
+  if (!widget) {
+    return;
+  }
+
   ANativeWindow* window = widget->AsAndroid()->GetPresentationANativeWindow();
 
   if (!window) {
     return;
   }
 
   CompositorOGL* compositor = mCompositor->AsCompositorOGL();
   GLContext* gl = compositor->gl();