diff --git a/mozilla/content/xml/document/src/nsXMLContentSink.cpp b/mozilla/content/xml/document/src/nsXMLContentSink.cpp
index 0dfb157ddc3..049922ba5e4 100644
--- a/mozilla/content/xml/document/src/nsXMLContentSink.cpp
+++ b/mozilla/content/xml/document/src/nsXMLContentSink.cpp
@@ -784,7 +784,7 @@ nsresult
 nsXMLContentSink::LoadXSLStyleSheet(nsIURI* aUrl)
 {
   mXSLTProcessor =
-    do_CreateInstance("@mozilla.org/document-transformer;1?type=text/xslt");
+    do_CreateInstance("@mozilla.org/document-transformer;1?type=xslt");
   if (!mXSLTProcessor) {
     // No XSLT processor available, continue normal document loading
     return NS_OK;
diff --git a/mozilla/content/xml/document/src/nsXMLPrettyPrinter.cpp b/mozilla/content/xml/document/src/nsXMLPrettyPrinter.cpp
index f526e78cd30..fb834079af1 100644
--- a/mozilla/content/xml/document/src/nsXMLPrettyPrinter.cpp
+++ b/mozilla/content/xml/document/src/nsXMLPrettyPrinter.cpp
@@ -148,7 +148,7 @@ nsXMLPrettyPrinter::PrettyPrint(nsIDocument* aDocument)
 
     // Transform the document
     nsCOMPtr<nsIXSLTProcessor> transformer =
-        do_CreateInstance("@mozilla.org/document-transformer;1?type=text/xsl", &rv);
+        do_CreateInstance("@mozilla.org/document-transformer;1?type=xslt", &rv);
     NS_ENSURE_SUCCESS(rv, rv);
 
     rv = transformer->ImportStylesheet(xslDocument);
diff --git a/mozilla/extensions/transformiix/source/xslt/txMozillaXSLTProcessor.h b/mozilla/extensions/transformiix/source/xslt/txMozillaXSLTProcessor.h
index e3057473f8d..2fb4337c950 100644
--- a/mozilla/extensions/transformiix/source/xslt/txMozillaXSLTProcessor.h
+++ b/mozilla/extensions/transformiix/source/xslt/txMozillaXSLTProcessor.h
@@ -64,7 +64,7 @@ class nsIXMLContentSink;
 { 0xbacd8ad0, 0x552f, 0x11d3, {0xa9, 0xf7, 0x00, 0x00, 0x64, 0x65, 0x73, 0x74} }
 
 #define TRANSFORMIIX_XSLT_PROCESSOR_CONTRACTID \
-"@mozilla.org/document-transformer;1?type=text/xslt"
+"@mozilla.org/document-transformer;1?type=xslt"
 
 class txVariable : public txIGlobalParameter
 {