diff --git a/content/html/style/src/nsCSSLoader.cpp b/content/html/style/src/nsCSSLoader.cpp
index d345614a1b3c..a1d92ce376c5 100644
--- a/content/html/style/src/nsCSSLoader.cpp
+++ b/content/html/style/src/nsCSSLoader.cpp
@@ -358,6 +358,7 @@ SheetLoadData::SheetLoadData(CSSLoaderImpl* aLoader, nsIURL* aURL,
     mURL(aURL),
     mTitle(),
     mMedia(),
+    mDefaultNameSpaceID(kNameSpaceID_Unknown),
     mSheetIndex(-1),
     mOwningElement(nsnull),
     mParserToUnblock(nsnull),
@@ -1246,6 +1247,9 @@ CSSLoaderImpl::LoadAgentSheet(nsIURL* aURL,
           result = ParseSheet(uin, data, aCompleted, aSheet);
           NS_RELEASE(uin);
         }
+        else {
+          fputs("CSSLoader::LoadAgentSheet - failed to get converter stream\n", stderr);
+        }
         NS_RELEASE(in);
       }
       else {
diff --git a/layout/html/style/src/nsCSSLoader.cpp b/layout/html/style/src/nsCSSLoader.cpp
index d345614a1b3c..a1d92ce376c5 100644
--- a/layout/html/style/src/nsCSSLoader.cpp
+++ b/layout/html/style/src/nsCSSLoader.cpp
@@ -358,6 +358,7 @@ SheetLoadData::SheetLoadData(CSSLoaderImpl* aLoader, nsIURL* aURL,
     mURL(aURL),
     mTitle(),
     mMedia(),
+    mDefaultNameSpaceID(kNameSpaceID_Unknown),
     mSheetIndex(-1),
     mOwningElement(nsnull),
     mParserToUnblock(nsnull),
@@ -1246,6 +1247,9 @@ CSSLoaderImpl::LoadAgentSheet(nsIURL* aURL,
           result = ParseSheet(uin, data, aCompleted, aSheet);
           NS_RELEASE(uin);
         }
+        else {
+          fputs("CSSLoader::LoadAgentSheet - failed to get converter stream\n", stderr);
+        }
         NS_RELEASE(in);
       }
       else {
diff --git a/layout/style/nsCSSLoader.cpp b/layout/style/nsCSSLoader.cpp
index d345614a1b3c..a1d92ce376c5 100644
--- a/layout/style/nsCSSLoader.cpp
+++ b/layout/style/nsCSSLoader.cpp
@@ -358,6 +358,7 @@ SheetLoadData::SheetLoadData(CSSLoaderImpl* aLoader, nsIURL* aURL,
     mURL(aURL),
     mTitle(),
     mMedia(),
+    mDefaultNameSpaceID(kNameSpaceID_Unknown),
     mSheetIndex(-1),
     mOwningElement(nsnull),
     mParserToUnblock(nsnull),
@@ -1246,6 +1247,9 @@ CSSLoaderImpl::LoadAgentSheet(nsIURL* aURL,
           result = ParseSheet(uin, data, aCompleted, aSheet);
           NS_RELEASE(uin);
         }
+        else {
+          fputs("CSSLoader::LoadAgentSheet - failed to get converter stream\n", stderr);
+        }
         NS_RELEASE(in);
       }
       else {