diff -r 000000000000 -r 6474c204b198 modules/libjar/nsIJARURI.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/modules/libjar/nsIJARURI.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,38 @@
+/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * 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 "nsIURL.idl"
+
+/**
+ * JAR URLs have the following syntax
+ *
+ * jar:<jar-file-uri>!/<jar-entry>
+ *
+ * EXAMPLE: jar:http://www.big.com/blue.jar!/ocean.html
+ *
+ * The nsIURL methods operate on the <jar-entry> part of the spec.
+ */
+[scriptable, uuid(1ee60719-c056-43b3-8f54-6a6e7ba0ca6c)]
+interface nsIJARURI : nsIURL {
+
+    /**
+     * Returns the root URI (the one for the actual JAR file) for this JAR
+     * (e.g., http://www.big.com/blue.jar).
+     */
+    readonly attribute nsIURI JARFile;
+
+    /**
+     * Returns the entry specified for this JAR URI (e.g., "ocean.html").  This
+     * value may contain %-escaped byte sequences.
+     */
+    attribute AUTF8String JAREntry;
+
+    /**
+     * Create a clone of the JAR URI with a new root URI (the URI for the
+     * actual JAR file).
+     */
+    nsIJARURI cloneWithJARFile(in nsIURI jarFile);
+};