--- a/widget/android/nsWindow.cpp
+++ b/widget/android/nsWindow.cpp
@@ -1139,17 +1139,16 @@ public:
     }
 
     already_AddRefed<UiCompositorControllerChild> GetUiCompositorControllerChild()
     {
         RefPtr<UiCompositorControllerChild> child;
         if (LockedWindowPtr window{mWindow}) {
             child = window->GetUiCompositorControllerChild();
         }
-        MOZ_ASSERT(child);
         return child.forget();
     }
 };
 
 template<> const char
 nsWindow::NativePtr<nsWindow::LayerViewSupport>::sName[] = "LayerViewSupport";
 
 /* PresentationMediaPlayerManager native calls access inner nsWindow functionality so PMPMSupport is a child class of nsWindow */