--- a/gfx/layers/wr/WebRenderLayerManager.h
+++ b/gfx/layers/wr/WebRenderLayerManager.h
@@ -274,17 +274,19 @@ private:
         MOZ_ASSERT(userDataTable->Count());
 
         userDataTable->Remove(data->GetDisplayItemKey());
 
         if (!userDataTable->Count()) {
           frame->RemoveProperty(nsIFrame::WebRenderUserDataProperty());
         }
         iter.Remove();
+        continue;
       }
+
       data->SetUsed(false);
     }
   }
 
 private:
   nsIWidget* MOZ_NON_OWNING_REF mWidget;
   nsTArray<wr::ImageKey> mImageKeysToDelete;
   // TODO - This is needed because we have some code that creates image keys