--- a/dom/base/nsDocument.cpp
+++ b/dom/base/nsDocument.cpp
@@ -7691,17 +7691,17 @@ nsDocument::GetXMLDeclaration(nsAString&
       aStandalone.AssignLiteral("yes");
     } else {
       aStandalone.AssignLiteral("no");
     }
   }
 }
 
 bool
-nsDocument::IsScriptEnabled()
+nsIDocument::IsScriptEnabled()
 {
   // If this document is sandboxed without 'allow-scripts'
   // script is not enabled
   if (HasScriptsBlockedBySandbox()) {
     return false;
   }
 
   nsCOMPtr<nsIScriptGlobalObject> globalObject = do_QueryInterface(GetInnerWindow());

--- a/dom/base/nsDocument.h
+++ b/dom/base/nsDocument.h
@@ -408,17 +408,16 @@ public:
 
   virtual void FlushExternalResources(mozilla::FlushType aType) override;
   virtual void SetXMLDeclaration(const char16_t *aVersion,
                                  const char16_t *aEncoding,
                                  const int32_t aStandalone) override;
   virtual void GetXMLDeclaration(nsAString& aVersion,
                                  nsAString& aEncoding,
                                  nsAString& Standalone) override;
-  virtual bool IsScriptEnabled() override;
 
   virtual void OnPageShow(bool aPersisted, mozilla::dom::EventTarget* aDispatchStartTarget) override;
   virtual void OnPageHide(bool aPersisted, mozilla::dom::EventTarget* aDispatchStartTarget) override;
 
   virtual void WillDispatchMutationEvent(nsINode* aTarget) override;
   virtual void MutationEventDispatched(nsINode* aTarget) override;
 
   // nsINode

--- a/dom/base/nsIDocument.h
+++ b/dom/base/nsIDocument.h
@@ -1894,17 +1894,17 @@ public:
   {
     return IsLoadedAsData() || IsLoadedAsInteractiveData();
   }
   bool LoadsFullXULStyleSheetUpFront()
   {
     return IsXULDocument() || AllowXULXBL();
   }
 
-  virtual bool IsScriptEnabled() = 0;
+  bool IsScriptEnabled();
 
   bool IsTopLevelContentDocument() const { return mIsTopLevelContentDocument; }
   void SetIsTopLevelContentDocument(bool aIsTopLevelContentDocument)
   {
     mIsTopLevelContentDocument = aIsTopLevelContentDocument;
     // When a document is set as TopLevelContentDocument, it must be
     // allowpaymentrequest. We handle the false case while a document is appended
     // in SetSubDocumentFor