diff --git a/mozilla/content/html/document/src/nsHTMLFragmentContentSink.cpp b/mozilla/content/html/document/src/nsHTMLFragmentContentSink.cpp
index d9b52413de1..5077caa63b2 100644
--- a/mozilla/content/html/document/src/nsHTMLFragmentContentSink.cpp
+++ b/mozilla/content/html/document/src/nsHTMLFragmentContentSink.cpp
@@ -436,6 +436,8 @@ nsHTMLFragmentContentSink::OpenContainer(const nsIParserNode& aNode)
         // XXX if navigator_quirks_mode (only body in html supports background)
         AddBaseTagInfo(content);     
         break;
+      default:  // eliminate warnings
+        break;
     }
   }
 
@@ -492,6 +494,8 @@ nsHTMLFragmentContentSink::AddLeaf(const nsIParserNode& aNode)
           case eHTMLTag_base:
             ProcessBaseTag(content);
             break;
+          default: // eliminate warnings
+            break;
         }
       }
       break;
diff --git a/mozilla/layout/html/document/src/nsHTMLFragmentContentSink.cpp b/mozilla/layout/html/document/src/nsHTMLFragmentContentSink.cpp
index d9b52413de1..5077caa63b2 100644
--- a/mozilla/layout/html/document/src/nsHTMLFragmentContentSink.cpp
+++ b/mozilla/layout/html/document/src/nsHTMLFragmentContentSink.cpp
@@ -436,6 +436,8 @@ nsHTMLFragmentContentSink::OpenContainer(const nsIParserNode& aNode)
         // XXX if navigator_quirks_mode (only body in html supports background)
         AddBaseTagInfo(content);     
         break;
+      default:  // eliminate warnings
+        break;
     }
   }
 
@@ -492,6 +494,8 @@ nsHTMLFragmentContentSink::AddLeaf(const nsIParserNode& aNode)
           case eHTMLTag_base:
             ProcessBaseTag(content);
             break;
+          default: // eliminate warnings
+            break;
         }
       }
       break;