--- a/layout/generic/nsGfxScrollFrame.cpp
+++ b/layout/generic/nsGfxScrollFrame.cpp
@@ -5052,33 +5052,37 @@ ScrollFrameHelper::IsScrollbarOnRight() 
 bool
 ScrollFrameHelper::IsMaybeScrollingActive() const
 {
   const nsStyleDisplay* disp = mOuter->StyleDisplay();
   if (disp && (disp->mWillChangeBitField & NS_STYLE_WILL_CHANGE_SCROLL)) {
     return true;
   }
 
+  nsIContent* content = mOuter->GetContent();
   return mHasBeenScrolledRecently ||
          IsAlwaysActive() ||
-         mWillBuildScrollableLayer;
+         nsLayoutUtils::HasDisplayPort(content) ||
+         nsContentUtils::HasScrollgrab(content);
 }
 
 bool
 ScrollFrameHelper::IsScrollingActive(nsDisplayListBuilder* aBuilder) const
 {
   const nsStyleDisplay* disp = mOuter->StyleDisplay();
   if (disp && (disp->mWillChangeBitField & NS_STYLE_WILL_CHANGE_SCROLL) &&
     aBuilder->IsInWillChangeBudget(mOuter, GetScrollPositionClampingScrollPortSize())) {
     return true;
   }
 
+  nsIContent* content = mOuter->GetContent();
   return mHasBeenScrolledRecently ||
          IsAlwaysActive() ||
-         mWillBuildScrollableLayer;
+         nsLayoutUtils::HasDisplayPort(content) ||
+         nsContentUtils::HasScrollgrab(content);
 }
 
 /**
  * Reflow the scroll area if it needs it and return its size. Also determine if the reflow will
  * cause any of the scrollbars to need to be reflowed.
  */
 nsresult
 nsXULScrollFrame::XULLayout(nsBoxLayoutState& aState)