--- a/dom/base/nsDocument.cpp
+++ b/dom/base/nsDocument.cpp
@@ -9010,33 +9010,34 @@ nsDocument::OnPageShow(bool aPersisted,
   }
 
   if (aPersisted) {
     ImageTracker()->SetAnimatingState(true);
   }
 
   UpdateVisibilityState();
 
-  nsCOMPtr<EventTarget> target = aDispatchStartTarget;
-  if (!target) {
-    target = do_QueryInterface(GetWindow());
-  }
-
-  // Dispatch observer notification to notify observers page is shown.
-  nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
-  if (os) {
-    nsIPrincipal *principal = GetPrincipal();
-    os->NotifyObservers(static_cast<nsIDocument*>(this),
-                        nsContentUtils::IsSystemPrincipal(principal) ?
-                          "chrome-page-shown" :
-                          "content-page-shown",
-                        nullptr);
-  }
-
-  DispatchPageTransition(target, NS_LITERAL_STRING("pageshow"), aPersisted);
+  if (!mIsBeingUsedAsImage) {
+    // Dispatch observer notification to notify observers page is shown.
+    nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
+    if (os) {
+      nsIPrincipal *principal = GetPrincipal();
+      os->NotifyObservers(static_cast<nsIDocument*>(this),
+                          nsContentUtils::IsSystemPrincipal(principal) ?
+                            "chrome-page-shown" :
+                            "content-page-shown",
+                          nullptr);
+    }
+
+    nsCOMPtr<EventTarget> target = aDispatchStartTarget;
+    if (!target) {
+      target = do_QueryInterface(GetWindow());
+    }
+    DispatchPageTransition(target, NS_LITERAL_STRING("pageshow"), aPersisted);
+  }
 }
 
 static bool
 NotifyPageHide(nsIDocument* aDocument, void* aData)
 {
   const bool* aPersistedPtr = static_cast<const bool*>(aData);
   aDocument->OnPageHide(*aPersistedPtr, nullptr);
   return true;
@@ -9101,36 +9102,37 @@ nsDocument::OnPageHide(bool aPersisted,
   // when the page is refreshing while being dragged out
   nsDocShell* docShell = mDocumentContainer.get();
   if (aPersisted && !(docShell && docShell->InFrameSwap())) {
     ImageTracker()->SetAnimatingState(false);
   }
 
   ExitPointerLock();
 
-  // Now send out a PageHide event.
-  nsCOMPtr<EventTarget> target = aDispatchStartTarget;
-  if (!target) {
-    target = do_QueryInterface(GetWindow());
-  }
-
-  // Dispatch observer notification to notify observers page is hidden.
-  nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
-  if (os) {
-    nsIPrincipal* principal = GetPrincipal();
-    os->NotifyObservers(static_cast<nsIDocument*>(this),
-                        nsContentUtils::IsSystemPrincipal(principal) ?
-                          "chrome-page-hidden" :
-                          "content-page-hidden",
-                        nullptr);
-  }
-
-  {
-    PageUnloadingEventTimeStamp timeStamp(this);
-    DispatchPageTransition(target, NS_LITERAL_STRING("pagehide"), aPersisted);
+  if (!mIsBeingUsedAsImage) {
+    // Dispatch observer notification to notify observers page is hidden.
+    nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
+    if (os) {
+      nsIPrincipal* principal = GetPrincipal();
+      os->NotifyObservers(static_cast<nsIDocument*>(this),
+                          nsContentUtils::IsSystemPrincipal(principal) ?
+                            "chrome-page-hidden" :
+                            "content-page-hidden",
+                          nullptr);
+    }
+
+    // Now send out a PageHide event.
+    nsCOMPtr<EventTarget> target = aDispatchStartTarget;
+    if (!target) {
+      target = do_QueryInterface(GetWindow());
+    }
+    {
+      PageUnloadingEventTimeStamp timeStamp(this);
+      DispatchPageTransition(target, NS_LITERAL_STRING("pagehide"), aPersisted);
+    }
   }
 
   mVisible = false;
 
   UpdateVisibilityState();
 
   EnumerateExternalResources(NotifyPageHide, &aPersisted);
   EnumerateActivityObservers(NotifyActivityChanged, nullptr);