diff --git a/mozilla/htmlparser/src/nsHTMLDTD.cpp b/mozilla/htmlparser/src/nsHTMLDTD.cpp
index ce31e0619cf..56bef725308 100644
--- a/mozilla/htmlparser/src/nsHTMLDTD.cpp
+++ b/mozilla/htmlparser/src/nsHTMLDTD.cpp
@@ -565,6 +565,7 @@ PRBool nsHTMLDTD::IsContainer(PRInt32 aTag) const {
     case eHTMLTag_math:       case eHTMLTag_meta:
     case eHTMLTag_option:     case eHTMLTag_param:
     case eHTMLTag_style:      case eHTMLTag_spacer:
+    case eHTMLTag_textarea:
     case eHTMLTag_wbr:
     case eHTMLTag_form:
       result=PR_FALSE;
diff --git a/mozilla/parser/htmlparser/src/nsHTMLDTD.cpp b/mozilla/parser/htmlparser/src/nsHTMLDTD.cpp
index ce31e0619cf..56bef725308 100644
--- a/mozilla/parser/htmlparser/src/nsHTMLDTD.cpp
+++ b/mozilla/parser/htmlparser/src/nsHTMLDTD.cpp
@@ -565,6 +565,7 @@ PRBool nsHTMLDTD::IsContainer(PRInt32 aTag) const {
     case eHTMLTag_math:       case eHTMLTag_meta:
     case eHTMLTag_option:     case eHTMLTag_param:
     case eHTMLTag_style:      case eHTMLTag_spacer:
+    case eHTMLTag_textarea:
     case eHTMLTag_wbr:
     case eHTMLTag_form:
       result=PR_FALSE;