diff -r 000000000000 -r 6474c204b198 toolkit/mozapps/installer/dozip.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/mozapps/installer/dozip.py	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,42 @@
+# 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/.
+
+# This script creates a zip file, but will also strip any binaries
+# it finds before adding them to the zip.
+
+from mozpack.files import FileFinder
+from mozpack.copier import Jarrer
+from mozpack.errors import errors
+
+import argparse
+import buildconfig
+import mozpack.path as mozpath
+import os
+import sys
+import tempfile
+
+def main(args):
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--base-dir",
+                        default=os.path.join(buildconfig.topobjdir,
+                                             "dist", "bin"),
+                        help="Store paths relative to this directory")
+    parser.add_argument("zip", help="Path to zip file to write")
+    parser.add_argument("input", nargs="+",
+                        help="Path to files to add to zip")
+    args = parser.parse_args(args)
+
+    jarrer = Jarrer(optimize=False)
+
+    with errors.accumulate():
+        finder = FileFinder(args.base_dir)
+        for i in args.input:
+            path = mozpath.relpath(i, args.base_dir)
+            for p, f in finder.find(path):
+                jarrer.add(p, f)
+        jarrer.copy(args.zip)
+
+
+if __name__ == '__main__':
+    main(sys.argv[1:])