diff --git a/content/xslt/src/base/txCore.h b/content/xslt/src/base/txCore.h
index d0700c71841..8953c38bc43 100644
--- a/content/xslt/src/base/txCore.h
+++ b/content/xslt/src/base/txCore.h
@@ -41,6 +41,7 @@
 
 #include "nscore.h"
 #include "nsDebug.h"
+#include "nsTraceRefcnt.h"
 #include "prtypes.h"
 #include "txDouble.h"
 
@@ -49,11 +50,17 @@ class nsAString;
 class txObject
 {
 public:
+    txObject()
+    {
+        MOZ_COUNT_CTOR(txObject);
+    }
+
     /**
      * Deletes this txObject
      */
     virtual ~txObject()
     {
+        MOZ_COUNT_DTOR(txObject);
     }
 };
 
diff --git a/content/xslt/src/xpath/txExpr.h b/content/xslt/src/xpath/txExpr.h
index e42acbf1fc4..ca7ff01ce18 100644
--- a/content/xslt/src/xpath/txExpr.h
+++ b/content/xslt/src/xpath/txExpr.h
@@ -70,6 +70,15 @@ class txXPathNode;
 class Expr
 {
 public:
+    Expr()
+    {
+        MOZ_COUNT_CTOR(Expr);
+    }
+    virtual ~Expr()
+    {
+        MOZ_COUNT_DTOR(Expr);
+    }
+
     /**
      * Evaluates this Expr based on the given context node and processor state
      * @param context the context node for evaluation of this Expr
@@ -405,7 +414,15 @@ private:
 class txNodeTest
 {
 public:
-    virtual ~txNodeTest() {}
+    txNodeTest()
+    {
+        MOZ_COUNT_CTOR(txNodeTest);
+    }
+    virtual ~txNodeTest()
+    {
+        MOZ_COUNT_DTOR(txNodeTest);
+    }
+
     /*
      * Virtual methods
      * pretty much a txPattern, but not supposed to be used 
diff --git a/content/xslt/src/xpath/txExprResult.h b/content/xslt/src/xpath/txExprResult.h
index 055eec45cdc..8442ce66254 100644
--- a/content/xslt/src/xpath/txExprResult.h
+++ b/content/xslt/src/xpath/txExprResult.h
@@ -72,10 +72,14 @@ public:
     txAExprResult(txResultRecycler* aRecycler) : mRecycler(aRecycler)
     {
     }
+    virtual ~txAExprResult()
+    {
+    }
 
     void AddRef()
     {
         ++mRefCnt;
+        NS_LOG_ADDREF(this, mRefCnt, "txAExprResult", sizeof(*this));
     }
     
     void Release(); // Implemented in txResultRecycler.cpp
diff --git a/content/xslt/src/xpath/txResultRecycler.cpp b/content/xslt/src/xpath/txResultRecycler.cpp
index f97d28a9f13..77e0e250cf3 100644
--- a/content/xslt/src/xpath/txResultRecycler.cpp
+++ b/content/xslt/src/xpath/txResultRecycler.cpp
@@ -290,7 +290,9 @@ txResultRecycler::getNonSharedNodeSet(txNodeSet* aNodeSet, txNodeSet** aResult)
 void
 txAExprResult::Release()
 {
-    if (--mRefCnt == 0) {
+    --mRefCnt;
+    NS_LOG_RELEASE(this, mRefCnt, "txAExprResult");
+    if (mRefCnt == 0) {
         if (mRecycler) {
             mRecycler->recycle(this);
         }
diff --git a/content/xslt/src/xpath/txResultRecycler.h b/content/xslt/src/xpath/txResultRecycler.h
index 7d452e5c26e..d463a0f6051 100644
--- a/content/xslt/src/xpath/txResultRecycler.h
+++ b/content/xslt/src/xpath/txResultRecycler.h
@@ -59,10 +59,13 @@ public:
     void AddRef()
     {
         ++mRefCnt;
+        NS_LOG_ADDREF(this, mRefCnt, "txResultRecycler", sizeof(*this));
     }
     void Release()
     {
-        if (--mRefCnt == 0) {
+        --mRefCnt;
+        NS_LOG_RELEASE(this, mRefCnt, "txResultRecycler");
+        if (mRefCnt == 0) {
             mRefCnt = 1; //stabilize
             delete this;
         }
diff --git a/content/xslt/src/xslt/txInstructions.h b/content/xslt/src/xslt/txInstructions.h
index 5d0df20432b..4079217daec 100644
--- a/content/xslt/src/xslt/txInstructions.h
+++ b/content/xslt/src/xslt/txInstructions.h
@@ -53,18 +53,19 @@ class txExecutionState;
 class txInstruction : public TxObject
 {
 public:
-    txInstruction() : mNext(0)
+    txInstruction()
     {
+        MOZ_COUNT_CTOR(txInstruction);
     }
 
     virtual ~txInstruction()
     {
-        delete mNext;
+        MOZ_COUNT_DTOR(txInstruction);
     }
 
     virtual nsresult execute(txExecutionState& aEs) = 0;
 
-    txInstruction* mNext;
+    nsAutoPtr<txInstruction> mNext;
 };
 
 #define TX_DECL_TXINSTRUCTION  \
diff --git a/content/xslt/src/xslt/txStylesheet.h b/content/xslt/src/xslt/txStylesheet.h
index 7f69016f454..d76e1b99747 100644
--- a/content/xslt/src/xslt/txStylesheet.h
+++ b/content/xslt/src/xslt/txStylesheet.h
@@ -236,6 +236,14 @@ protected:
 class txIGlobalParameter
 {
 public:
+    txIGlobalParameter()
+    {
+        MOZ_COUNT_CTOR(txIGlobalParameter);
+    }
+    virtual ~txIGlobalParameter()
+    {
+        MOZ_COUNT_DTOR(txIGlobalParameter);
+    }
     virtual nsresult getValue(txAExprResult** aValue) = 0;
 };
 
diff --git a/content/xslt/src/xslt/txStylesheetCompiler.cpp b/content/xslt/src/xslt/txStylesheetCompiler.cpp
index efbd19ace42..aae65120166 100644
--- a/content/xslt/src/xslt/txStylesheetCompiler.cpp
+++ b/content/xslt/src/xslt/txStylesheetCompiler.cpp
@@ -72,13 +72,17 @@ txStylesheetCompiler::txStylesheetCompiler(const nsAString& aStylesheetURI,
 nsrefcnt
 txStylesheetCompiler::AddRef()
 {
-    return ++mRefCnt;
+    ++mRefCnt;
+    NS_LOG_ADDREF(this, mRefCnt, "txStylesheetCompiler", sizeof(*this));
+    return mRefCnt;
 }
 
 nsrefcnt
 txStylesheetCompiler::Release()
 {
-    if (--mRefCnt == 0) {
+    --mRefCnt;
+    NS_LOG_RELEASE(this, mRefCnt, "txStylesheetCompiler");
+    if (mRefCnt == 0) {
         mRefCnt = 1; //stabilize
         delete this;
         return 0;
@@ -764,7 +768,7 @@ txStylesheetCompilerState::addInstruction(nsAutoPtr<txInstruction> aInstruction)
     txInstruction* newInstr = aInstruction;
 
     *mNextInstrPtr = aInstruction.forget();
-    mNextInstrPtr = &newInstr->mNext;
+    mNextInstrPtr = newInstr->mNext.StartAssignment();
     
     PRInt32 i, count = mGotoTargetPointers.Count();
     for (i = 0; i < count; ++i) {
diff --git a/content/xslt/src/xslt/txToplevelItems.h b/content/xslt/src/xslt/txToplevelItems.h
index f4876c2d2de..61b2be7e669 100644
--- a/content/xslt/src/xslt/txToplevelItems.h
+++ b/content/xslt/src/xslt/txToplevelItems.h
@@ -51,8 +51,13 @@ class Expr;
 class txToplevelItem
 {
 public:
+    txToplevelItem()
+    {
+        MOZ_COUNT_CTOR(txToplevelItem);
+    }
     virtual ~txToplevelItem()
     {
+        MOZ_COUNT_DTOR(txToplevelItem);
     }
 
     enum type {