diff --git a/toolkit/mozapps/installer/packager.mk b/toolkit/mozapps/installer/packager.mk
index 6d98ea2ff127..51b02c414121 100644
--- a/toolkit/mozapps/installer/packager.mk
+++ b/toolkit/mozapps/installer/packager.mk
@@ -701,6 +701,9 @@ make-sdk:
 	(cd $(DIST)/sdk/lib && $(TAR) $(TAR_CREATE_FLAGS) - .) | \
 	  (cd $(DIST)/$(MOZ_APP_NAME)-sdk/lib && tar -xf -)
 	$(NSINSTALL) -D $(DIST)/$(SDK_PATH)
+ifndef PKG_SKIP_STRIP
+	USE_ELF_HACK= $(PYTHON) toolkit/mozapps/installer/strip.py $(DIST)/$(MOZ_APP_NAME)-sdk
+endif
 	cd $(DIST) && $(MAKE_SDK)
 
 ifeq ($(OS_TARGET), WINNT)
diff --git a/toolkit/mozapps/installer/strip.py b/toolkit/mozapps/installer/strip.py
new file mode 100644
index 000000000000..bb83025da552
--- /dev/null
+++ b/toolkit/mozapps/installer/strip.py
@@ -0,0 +1,23 @@
+# 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/.
+
+'''
+Strip all files that can be stripped in the given directory.
+'''
+
+import sys
+from mozpack.files import FileFinder
+from mozpack.copier import FileCopier
+
+def strip(dir):
+    copier = FileCopier()
+    # The FileFinder will give use ExecutableFile instances for files
+    # that can be stripped, and copying ExecutableFiles defaults to
+    # stripping them unless buildconfig.substs['PKG_SKIP_STRIP'] is set.
+    for p, f in FileFinder(dir):
+        copier.add(p, f)
+    copier.copy(dir)
+
+if __name__ == '__main__':
+    strip(sys.argv[1])