--- a/docshell/base/nsDocShell.cpp
+++ b/docshell/base/nsDocShell.cpp
@@ -3109,31 +3109,49 @@ nsDocShell::NotifyAsyncPanZoomStarted(co
         nsWeakPtr ref = iter.GetNext();
         nsCOMPtr<nsIScrollObserver> obs = do_QueryReferent(ref);
         if (obs) {
             obs->AsyncPanZoomStarted(aScrollPos);
         } else {
             mScrollObservers.RemoveElement(ref);
         }
     }
+
+    // Also notify child docshell
+    for (uint32_t i = 0; i < mChildList.Length(); ++i) {
+        nsCOMPtr<nsIDocShell> kid = do_QueryInterface(ChildAt(i));
+        if (kid) {
+            nsDocShell* docShell = static_cast<nsDocShell*>(kid.get());
+            docShell->NotifyAsyncPanZoomStarted(aScrollPos);
+        }
+    }
 }
 
 void
 nsDocShell::NotifyAsyncPanZoomStopped(const mozilla::CSSIntPoint aScrollPos)
 {
     nsTObserverArray<nsWeakPtr>::ForwardIterator iter(mScrollObservers);
     while (iter.HasMore()) {
         nsWeakPtr ref = iter.GetNext();
         nsCOMPtr<nsIScrollObserver> obs = do_QueryReferent(ref);
         if (obs) {
             obs->AsyncPanZoomStopped(aScrollPos);
         } else {
             mScrollObservers.RemoveElement(ref);
         }
     }
+
+    // Also notify child docshell
+    for (uint32_t i = 0; i < mChildList.Length(); ++i) {
+        nsCOMPtr<nsIDocShell> kid = do_QueryInterface(ChildAt(i));
+        if (kid) {
+            nsDocShell* docShell = static_cast<nsDocShell*>(kid.get());
+            docShell->NotifyAsyncPanZoomStopped(aScrollPos);
+        }
+    }
 }
 
 NS_IMETHODIMP
 nsDocShell::NotifyScrollObservers()
 {
     nsTObserverArray<nsWeakPtr>::ForwardIterator iter(mScrollObservers);
     while (iter.HasMore()) {
         nsWeakPtr ref = iter.GetNext();

--- a/layout/base/SelectionCarets.cpp
+++ b/layout/base/SelectionCarets.cpp
@@ -940,18 +940,18 @@ SelectionCarets::GetFrameSelection()
     return focusFrame->GetFrameSelection();
   } else {
     return mPresShell->FrameSelection();
   }
 }
 
 nsresult
 SelectionCarets::NotifySelectionChanged(nsIDOMDocument* aDoc,
-                                       nsISelection* aSel,
-                                       int16_t aReason)
+                                        nsISelection* aSel,
+                                        int16_t aReason)
 {
   SELECTIONCARETS_LOG("aSel (%p), Reason=%d", aSel, aReason);
   if (!aReason || (aReason & (nsISelectionListener::DRAG_REASON |
                                nsISelectionListener::KEYPRESS_REASON |
                                nsISelectionListener::MOUSEDOWN_REASON))) {
     SetVisibility(false);
   } else {
     UpdateSelectionCarets();