diff --git a/mozilla/xpcom/io/nsLocalFileOS2.cpp b/mozilla/xpcom/io/nsLocalFileOS2.cpp
index 233a3fd7ace..ac79cf53b90 100644
--- a/mozilla/xpcom/io/nsLocalFileOS2.cpp
+++ b/mozilla/xpcom/io/nsLocalFileOS2.cpp
@@ -580,9 +580,8 @@ char *   TypeEaEnumerator::GetNext(PRUint32 *lth)
 //-----------------------------------------------------------------------------
 
 nsLocalFile::nsLocalFile()
+  : mDirty(PR_TRUE)
 {
-    MakeDirty();
-    memset(&mFileInfo64, 0, sizeof(mFileInfo64));
 }
 
 NS_METHOD
@@ -617,9 +616,8 @@ NS_IMPL_THREADSAFE_ISUPPORTS3(nsLocalFile, nsILocalFile, nsIFile, nsILocalFileOS
 //-----------------------------------------------------------------------------
 
 nsLocalFile::nsLocalFile(const nsLocalFile& other)
-  : mDirty(other.mDirty)
+  : mDirty(PR_TRUE)
   , mWorkingPath(other.mWorkingPath)
-  , mFileInfo64(other.mFileInfo64)
 {
 }
 
diff --git a/mozilla/xpcom/io/nsLocalFileUnix.cpp b/mozilla/xpcom/io/nsLocalFileUnix.cpp
index b43f162643a..381ce2a24d6 100644
--- a/mozilla/xpcom/io/nsLocalFileUnix.cpp
+++ b/mozilla/xpcom/io/nsLocalFileUnix.cpp
@@ -247,9 +247,8 @@ nsLocalFile::nsLocalFile() :
 }
 
 nsLocalFile::nsLocalFile(const nsLocalFile& other)
-  : mCachedStat(other.mCachedStat)
-  , mPath(other.mPath)
-  , mHaveCachedStat(other.mHaveCachedStat)
+  : mPath(other.mPath)
+  , mHaveCachedStat(PR_FALSE)
 {
 }
 
diff --git a/mozilla/xpcom/io/nsLocalFileWin.cpp b/mozilla/xpcom/io/nsLocalFileWin.cpp
index 84c05767ee6..a9cce179ba7 100644
--- a/mozilla/xpcom/io/nsLocalFileWin.cpp
+++ b/mozilla/xpcom/io/nsLocalFileWin.cpp
@@ -450,10 +450,9 @@ NS_IMPL_ISUPPORTS2(nsDirEnumerator, nsISimpleEnumerator, nsIDirectoryEnumerator)
 //-----------------------------------------------------------------------------
 
 nsLocalFile::nsLocalFile()
- :  mFollowSymlinks(PR_FALSE)
+  : mDirty(PR_TRUE)
+  , mFollowSymlinks(PR_FALSE)
 {
-    MakeDirty();
-    memset(&mFileInfo64, 0, sizeof(mFileInfo64));
 }
 
 NS_METHOD
@@ -488,11 +487,9 @@ NS_IMPL_THREADSAFE_ISUPPORTS3(nsLocalFile, nsILocalFile, nsIFile, nsILocalFileWi
 //-----------------------------------------------------------------------------
 
 nsLocalFile::nsLocalFile(const nsLocalFile& other)
-  : mDirty(other.mDirty)
+  : mDirty(PR_TRUE)
   , mFollowSymlinks(other.mFollowSymlinks)
   , mWorkingPath(other.mWorkingPath)
-  , mResolvedPath(other.mResolvedPath)
-  , mFileInfo64(other.mFileInfo64)
 {
 }