diff --git a/mozilla/base/src/nsString.cpp b/mozilla/base/src/nsString.cpp
index 59fce5d475f..fa39bf764ab 100644
--- a/mozilla/base/src/nsString.cpp
+++ b/mozilla/base/src/nsString.cpp
@@ -677,7 +677,6 @@ nsString& nsString::operator=(const PRUnichar* aStr) {
  * @return  this
  *------------------------------------------------------*/
 nsString& nsString::operator=(PRUnichar aChar) {
-  mLength=1;
   if(mCapacity<1) 
     EnsureCapacityFor(kGrowthDelta);
   mStr[0]=aChar;
diff --git a/mozilla/string/obsolete/nsString.cpp b/mozilla/string/obsolete/nsString.cpp
index 59fce5d475f..fa39bf764ab 100644
--- a/mozilla/string/obsolete/nsString.cpp
+++ b/mozilla/string/obsolete/nsString.cpp
@@ -677,7 +677,6 @@ nsString& nsString::operator=(const PRUnichar* aStr) {
  * @return  this
  *------------------------------------------------------*/
 nsString& nsString::operator=(PRUnichar aChar) {
-  mLength=1;
   if(mCapacity<1) 
     EnsureCapacityFor(kGrowthDelta);
   mStr[0]=aChar;
diff --git a/mozilla/xpcom/ds/nsString.cpp b/mozilla/xpcom/ds/nsString.cpp
index 59fce5d475f..fa39bf764ab 100644
--- a/mozilla/xpcom/ds/nsString.cpp
+++ b/mozilla/xpcom/ds/nsString.cpp
@@ -677,7 +677,6 @@ nsString& nsString::operator=(const PRUnichar* aStr) {
  * @return  this
  *------------------------------------------------------*/
 nsString& nsString::operator=(PRUnichar aChar) {
-  mLength=1;
   if(mCapacity<1) 
     EnsureCapacityFor(kGrowthDelta);
   mStr[0]=aChar;
diff --git a/mozilla/xpcom/string/obsolete/nsString.cpp b/mozilla/xpcom/string/obsolete/nsString.cpp
index 59fce5d475f..fa39bf764ab 100644
--- a/mozilla/xpcom/string/obsolete/nsString.cpp
+++ b/mozilla/xpcom/string/obsolete/nsString.cpp
@@ -677,7 +677,6 @@ nsString& nsString::operator=(const PRUnichar* aStr) {
  * @return  this
  *------------------------------------------------------*/
 nsString& nsString::operator=(PRUnichar aChar) {
-  mLength=1;
   if(mCapacity<1) 
     EnsureCapacityFor(kGrowthDelta);
   mStr[0]=aChar;