diff -r 000000000000 -r 6474c204b198 modules/libjar/zipwriter/src/ZipWriterModule.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/modules/libjar/zipwriter/src/ZipWriterModule.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,37 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include "mozilla/ModuleUtils.h"
+#include "nsDeflateConverter.h"
+#include "nsZipWriter.h"
+
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsDeflateConverter)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsZipWriter)
+
+NS_DEFINE_NAMED_CID(DEFLATECONVERTER_CID);
+NS_DEFINE_NAMED_CID(ZIPWRITER_CID);
+
+static const mozilla::Module::CIDEntry kZipWriterCIDs[] = {
+  { &kDEFLATECONVERTER_CID, false, nullptr, nsDeflateConverterConstructor },
+  { &kZIPWRITER_CID, false, nullptr, nsZipWriterConstructor },
+  { nullptr }
+};
+
+static const mozilla::Module::ContractIDEntry kZipWriterContracts[] = {
+  { "@mozilla.org/streamconv;1?from=uncompressed&to=deflate", &kDEFLATECONVERTER_CID },
+  { "@mozilla.org/streamconv;1?from=uncompressed&to=gzip", &kDEFLATECONVERTER_CID },
+  { "@mozilla.org/streamconv;1?from=uncompressed&to=x-gzip", &kDEFLATECONVERTER_CID },
+  { "@mozilla.org/streamconv;1?from=uncompressed&to=rawdeflate", &kDEFLATECONVERTER_CID },
+  { ZIPWRITER_CONTRACTID, &kZIPWRITER_CID },
+  { nullptr }
+};
+
+static const mozilla::Module kZipWriterModule = {
+  mozilla::Module::kVersion,
+  kZipWriterCIDs,
+  kZipWriterContracts
+};
+
+NSMODULE_DEFN(ZipWriterModule) = &kZipWriterModule;