diff --git a/mozilla/parser/htmlparser/src/CNavDTD.cpp b/mozilla/parser/htmlparser/src/CNavDTD.cpp
index 149b237cb59..07f21b9c755 100644
--- a/mozilla/parser/htmlparser/src/CNavDTD.cpp
+++ b/mozilla/parser/htmlparser/src/CNavDTD.cpp
@@ -2794,7 +2794,7 @@ eHTMLTags CNavDTD::GetTopNode() const {
  * @param   tag of the container just opened
  * @return  0 (for now)
  */
-nsresult CNavDTD::OpenTransientStyles(eHTMLTags aChildTag){
+nsresult CNavDTD::OpenTransientStyles(eHTMLTags aChildTag, PRBool aCloseInvalid){
   nsresult result=NS_OK;
 
   // No need to open transient styles in head context - Fix for 41427
@@ -2853,7 +2853,7 @@ nsresult CNavDTD::OpenTransientStyles(eHTMLTags aChildTag){
                   result = OpenContainer(theNode,theNodeTag,PR_FALSE,theStack);
                 }
               }
-              else {
+              else if (aCloseInvalid) {
                 //if the node tag can't contain the child tag, then remove the child tag from the style stack
                 nsCParserNode* node=theStack->Remove(sindex,theNodeTag);
                 IF_FREE(node, &mNodeAllocator);
@@ -3251,7 +3251,7 @@ CNavDTD::OpenContainer(const nsCParserNode *aNode,
      *
      ***********************************************************************/
 
-    OpenTransientStyles(aTag); 
+    OpenTransientStyles(aTag, !li_tag); 
   }
 
   switch (aTag) {
diff --git a/mozilla/parser/htmlparser/src/CNavDTD.h b/mozilla/parser/htmlparser/src/CNavDTD.h
index 143ffb65f01..c412874eabb 100644
--- a/mozilla/parser/htmlparser/src/CNavDTD.h
+++ b/mozilla/parser/htmlparser/src/CNavDTD.h
@@ -234,8 +234,8 @@ public:
 
     /**
      * Accessor that retrieves the tag type of the topmost item on context 
-	   * vector stack.
-	   *
+     * vector stack.
+     *
      * @update	gess5/11/98
      * @return  tag type (may be unknown)
      */
@@ -284,7 +284,7 @@ public:
 
     /**
      * The next set of method open given HTML elements of
-	   * various types.
+     * various types.
      * 
      * @update	gess5/11/98
      * @param   node to be opened in content sink.
@@ -341,14 +341,15 @@ public:
 
     /**
      * This set of methods is used to create and manage the set of
-	   * transient styles that occur as a result of poorly formed HTML
-   	 * or bugs in the original navigator.
-	   *
+     * transient styles that occur as a result of poorly formed HTML
+     * or bugs in the original navigator.
+     *
      * @update	gess5/11/98
      * @param   aTag -- represents the transient style tag to be handled.
      * @return  error code -- usually 0
      */
-    nsresult  OpenTransientStyles(eHTMLTags aChildTag);
+    nsresult  OpenTransientStyles(eHTMLTags aChildTag,
+                                  PRBool aCloseInvalid = PR_TRUE);
     nsresult  CloseTransientStyles(eHTMLTags aChildTag);
     nsresult  PopStyle(eHTMLTags aTag);