diff --git a/editor/libeditor/base/ChangeAttributeTxn.cpp b/editor/libeditor/base/ChangeAttributeTxn.cpp
index de3d141cbee..bf43761f31c 100644
--- a/editor/libeditor/base/ChangeAttributeTxn.cpp
+++ b/editor/libeditor/base/ChangeAttributeTxn.cpp
@@ -16,6 +16,10 @@ ChangeAttributeTxn::ChangeAttributeTxn()
 {
 }
 
+ChangeAttributeTxn::~ChangeAttributeTxn()
+{
+}
+
 NS_IMPL_CYCLE_COLLECTION_INHERITED(ChangeAttributeTxn, EditTxn,
                                    mElement)
 
diff --git a/editor/libeditor/base/ChangeAttributeTxn.h b/editor/libeditor/base/ChangeAttributeTxn.h
index f3ec7fd0fe1..51a52c4c0f8 100644
--- a/editor/libeditor/base/ChangeAttributeTxn.h
+++ b/editor/libeditor/base/ChangeAttributeTxn.h
@@ -46,6 +46,7 @@ public:
   NS_IMETHOD RedoTransaction();
 
 protected:
+  virtual ~ChangeAttributeTxn();
 
   /** the editor that created this transaction */
   nsIEditor*  mEditor;
diff --git a/editor/libeditor/base/CreateElementTxn.cpp b/editor/libeditor/base/CreateElementTxn.cpp
index b2db8446638..7c83bb3ece6 100644
--- a/editor/libeditor/base/CreateElementTxn.cpp
+++ b/editor/libeditor/base/CreateElementTxn.cpp
@@ -32,6 +32,10 @@ CreateElementTxn::CreateElementTxn()
 {
 }
 
+CreateElementTxn::~CreateElementTxn()
+{
+}
+
 NS_IMPL_CYCLE_COLLECTION_INHERITED(CreateElementTxn, EditTxn,
                                    mParent,
                                    mNewNode,
diff --git a/editor/libeditor/base/CreateElementTxn.h b/editor/libeditor/base/CreateElementTxn.h
index bf4d708cc2f..b91bd75499c 100644
--- a/editor/libeditor/base/CreateElementTxn.h
+++ b/editor/libeditor/base/CreateElementTxn.h
@@ -48,7 +48,8 @@ public:
   NS_IMETHOD GetNewNode(nsIDOMNode **aNewNode);
 
 protected:
-  
+  virtual ~CreateElementTxn();
+
   /** the document into which the new node will be inserted */
   nsEditor* mEditor;
   
diff --git a/editor/libeditor/base/DeleteNodeTxn.cpp b/editor/libeditor/base/DeleteNodeTxn.cpp
index c3a75be0d71..2e15e40581a 100644
--- a/editor/libeditor/base/DeleteNodeTxn.cpp
+++ b/editor/libeditor/base/DeleteNodeTxn.cpp
@@ -17,6 +17,10 @@ DeleteNodeTxn::DeleteNodeTxn()
 {
 }
 
+DeleteNodeTxn::~DeleteNodeTxn()
+{
+}
+
 NS_IMPL_CYCLE_COLLECTION_INHERITED(DeleteNodeTxn, EditTxn,
                                    mNode,
                                    mParent,
diff --git a/editor/libeditor/base/DeleteNodeTxn.h b/editor/libeditor/base/DeleteNodeTxn.h
index 26b4516d6cc..b2ebe167f38 100644
--- a/editor/libeditor/base/DeleteNodeTxn.h
+++ b/editor/libeditor/base/DeleteNodeTxn.h
@@ -39,6 +39,7 @@ public:
   NS_IMETHOD RedoTransaction();
 
 protected:
+  virtual ~DeleteNodeTxn();
 
   /** the element to delete */
   nsCOMPtr<nsINode> mNode;
diff --git a/editor/libeditor/base/EditAggregateTxn.cpp b/editor/libeditor/base/EditAggregateTxn.cpp
index f3dc5d1bb85..2a790a3df90 100644
--- a/editor/libeditor/base/EditAggregateTxn.cpp
+++ b/editor/libeditor/base/EditAggregateTxn.cpp
@@ -16,6 +16,10 @@ EditAggregateTxn::EditAggregateTxn()
 {
 }
 
+EditAggregateTxn::~EditAggregateTxn()
+{
+}
+
 NS_IMPL_CYCLE_COLLECTION_INHERITED(EditAggregateTxn, EditTxn,
                                    mChildren)
 
diff --git a/editor/libeditor/base/EditAggregateTxn.h b/editor/libeditor/base/EditAggregateTxn.h
index cf1803a0c20..39d1bc23e96 100644
--- a/editor/libeditor/base/EditAggregateTxn.h
+++ b/editor/libeditor/base/EditAggregateTxn.h
@@ -41,6 +41,7 @@ public:
   NS_IMETHOD GetName(nsIAtom **aName);
 
 protected:
+  virtual ~EditAggregateTxn();
 
   nsTArray< nsRefPtr<EditTxn> > mChildren;
   nsCOMPtr<nsIAtom> mName;
diff --git a/editor/libeditor/base/InsertElementTxn.cpp b/editor/libeditor/base/InsertElementTxn.cpp
index e5e24b1a3ac..a9fe3bf61ca 100644
--- a/editor/libeditor/base/InsertElementTxn.cpp
+++ b/editor/libeditor/base/InsertElementTxn.cpp
@@ -24,6 +24,10 @@ InsertElementTxn::InsertElementTxn()
 {
 }
 
+InsertElementTxn::~InsertElementTxn()
+{
+}
+
 NS_IMPL_CYCLE_COLLECTION_INHERITED(InsertElementTxn, EditTxn,
                                    mNode,
                                    mParent)
diff --git a/editor/libeditor/base/InsertElementTxn.h b/editor/libeditor/base/InsertElementTxn.h
index 25f5cc6272a..006005496cb 100644
--- a/editor/libeditor/base/InsertElementTxn.h
+++ b/editor/libeditor/base/InsertElementTxn.h
@@ -39,7 +39,8 @@ public:
   NS_DECL_EDITTXN
 
 protected:
-  
+  virtual ~InsertElementTxn();
+
   /** the element to insert */
   nsCOMPtr<nsIDOMNode> mNode;
 
diff --git a/editor/libeditor/base/InsertTextTxn.cpp b/editor/libeditor/base/InsertTextTxn.cpp
index ebf5ae3d1be..8e416d0dc59 100644
--- a/editor/libeditor/base/InsertTextTxn.cpp
+++ b/editor/libeditor/base/InsertTextTxn.cpp
@@ -20,6 +20,10 @@ InsertTextTxn::InsertTextTxn()
 {
 }
 
+InsertTextTxn::~InsertTextTxn()
+{
+}
+
 NS_IMPL_CYCLE_COLLECTION_INHERITED(InsertTextTxn, EditTxn,
                                    mElement)
 
diff --git a/editor/libeditor/base/InsertTextTxn.h b/editor/libeditor/base/InsertTextTxn.h
index 0f31400c216..244951824b0 100644
--- a/editor/libeditor/base/InsertTextTxn.h
+++ b/editor/libeditor/base/InsertTextTxn.h
@@ -57,6 +57,7 @@ public:
   NS_IMETHOD GetData(nsString& aResult);
 
 protected:
+  virtual ~InsertTextTxn();
 
   /** return true if aOtherTxn immediately follows this txn */
   virtual bool IsSequentialInsert(InsertTextTxn *aOtherTxn);
diff --git a/editor/libeditor/base/PlaceholderTxn.cpp b/editor/libeditor/base/PlaceholderTxn.cpp
index d3af1ea2ad2..fea91ed0abb 100644
--- a/editor/libeditor/base/PlaceholderTxn.cpp
+++ b/editor/libeditor/base/PlaceholderTxn.cpp
@@ -23,6 +23,10 @@ PlaceholderTxn::PlaceholderTxn() :  EditAggregateTxn(),
 {
 }
 
+PlaceholderTxn::~PlaceholderTxn()
+{
+}
+
 NS_IMPL_CYCLE_COLLECTION_CLASS(PlaceholderTxn)
 
 NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(PlaceholderTxn,
diff --git a/editor/libeditor/base/PlaceholderTxn.h b/editor/libeditor/base/PlaceholderTxn.h
index 54bbc1c5934..fc3381e69be 100644
--- a/editor/libeditor/base/PlaceholderTxn.h
+++ b/editor/libeditor/base/PlaceholderTxn.h
@@ -60,6 +60,7 @@ public:
   NS_IMETHOD RememberEndingSelection();
 
 protected:
+  virtual ~PlaceholderTxn();
 
   /** the presentation shell, which we'll need to get the selection */
   bool        mAbsorb;          // do we auto absorb any and all transaction?
diff --git a/editor/libeditor/base/SplitElementTxn.cpp b/editor/libeditor/base/SplitElementTxn.cpp
index 3b5f99ee67c..2299c599c73 100644
--- a/editor/libeditor/base/SplitElementTxn.cpp
+++ b/editor/libeditor/base/SplitElementTxn.cpp
@@ -24,6 +24,10 @@ SplitElementTxn::SplitElementTxn()
 {
 }
 
+SplitElementTxn::~SplitElementTxn()
+{
+}
+
 NS_IMPL_CYCLE_COLLECTION_INHERITED(SplitElementTxn, EditTxn,
                                    mParent,
                                    mNewLeftNode)
diff --git a/editor/libeditor/base/SplitElementTxn.h b/editor/libeditor/base/SplitElementTxn.h
index 65e97318d14..346d5dd6f97 100644
--- a/editor/libeditor/base/SplitElementTxn.h
+++ b/editor/libeditor/base/SplitElementTxn.h
@@ -45,7 +45,8 @@ public:
   NS_IMETHOD GetNewNode(nsIDOMNode **aNewNode);
 
 protected:
-  
+  virtual ~SplitElementTxn();
+
   /** the element to operate upon */
   nsCOMPtr<nsIDOMNode> mExistingRightNode;
 
diff --git a/editor/libeditor/html/nsHTMLEditRules.h b/editor/libeditor/html/nsHTMLEditRules.h
index 1a1d53825c4..d468a2df391 100644
--- a/editor/libeditor/html/nsHTMLEditRules.h
+++ b/editor/libeditor/html/nsHTMLEditRules.h
@@ -67,10 +67,8 @@ class nsHTMLEditRules : public nsTextEditRules, public nsIEditActionListener
 public:
 
   NS_DECL_ISUPPORTS_INHERITED
-  
-            nsHTMLEditRules();
-  virtual   ~nsHTMLEditRules();
 
+  nsHTMLEditRules();
 
   // nsIEditRules methods
   NS_IMETHOD Init(nsPlaintextEditor *aEditor);
@@ -111,6 +109,7 @@ public:
   NS_IMETHOD DidDeleteSelection(nsISelection *aSelection);
 
 protected:
+  virtual ~nsHTMLEditRules();
 
   enum RulesEndpoint
   {
diff --git a/editor/libeditor/html/nsHTMLEditor.h b/editor/libeditor/html/nsHTMLEditor.h
index 7b0fd008be5..2480f22fc70 100644
--- a/editor/libeditor/html/nsHTMLEditor.h
+++ b/editor/libeditor/html/nsHTMLEditor.h
@@ -94,8 +94,7 @@ public:
   NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(nsHTMLEditor, nsPlaintextEditor)
 
 
-           nsHTMLEditor();
-  virtual  ~nsHTMLEditor();
+  nsHTMLEditor();
 
   bool GetReturnInParagraphCreatesNewParagraph();
 
@@ -260,6 +259,8 @@ public:
   static bool NodeIsBlockStatic(const mozilla::dom::Element* aElement);
   static nsresult NodeIsBlockStatic(nsIDOMNode *aNode, bool *aIsBlock);
 protected:
+  virtual ~nsHTMLEditor();
+
   using nsEditor::IsBlockNode;
   virtual bool IsBlockNode(nsINode *aNode);
 
diff --git a/editor/libeditor/text/nsPlaintextEditor.h b/editor/libeditor/text/nsPlaintextEditor.h
index 4f2c3a5b75e..af6bdaa384d 100644
--- a/editor/libeditor/text/nsPlaintextEditor.h
+++ b/editor/libeditor/text/nsPlaintextEditor.h
@@ -54,8 +54,7 @@ public:
     eTypedBreak  /* user typed enter */
   };
 
-           nsPlaintextEditor();
-  virtual  ~nsPlaintextEditor();
+  nsPlaintextEditor();
 
   /* ------------ nsIPlaintextEditor methods -------------- */
   NS_DECL_NSIPLAINTEXTEDITOR
@@ -162,6 +161,7 @@ public:
                                     int32_t &aCaretStyle);
 
 protected:
+  virtual  ~nsPlaintextEditor();
 
   NS_IMETHOD  InitRules();
   void        BeginEditorInit();