--- a/toolkit/mozapps/installer/signing.mk
+++ b/toolkit/mozapps/installer/signing.mk
@@ -3,18 +3,18 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 # We shouldn't sign the first pass of a PGO build
 ifndef MOZ_PROFILE_GENERATE
 
 # Signing support
 ifdef MOZ_SIGN_CMD
 ifeq (WINNT,$(OS_ARCH))
-MOZ_INTERNAL_SIGNING_FORMAT := sha2signcode
-MOZ_EXTERNAL_SIGNING_FORMAT := sha2signcode
+MOZ_INTERNAL_SIGNING_FORMAT := osslsigncode
+MOZ_EXTERNAL_SIGNING_FORMAT := osslsigncode
 SIGN_INCLUDES := \
   '*.dll' \
   '*.exe' \
   $(NULL)
 
 SIGN_EXCLUDES := \
   'D3DCompiler*.dll' \
   'msvc*.dll' \

--- a/toolkit/mozapps/installer/upload-files.mk
+++ b/toolkit/mozapps/installer/upload-files.mk
@@ -146,18 +146,18 @@ INNER_MAKE_PACKAGE 	= $(CREATE_FINAL_TAR
 else
 INNER_MAKE_PACKAGE 	= $(CREATE_FINAL_TAR) - $(MOZ_PKG_DIR) | bzip2 -vf > $(PACKAGE)
 endif
 INNER_UNMAKE_PACKAGE	= bunzip2 -c $(UNPACKAGE) | $(UNPACK_TAR)
 MAKE_SDK = $(CREATE_FINAL_TAR) - $(MOZ_APP_NAME)-sdk | bzip2 -vf > $(SDK)
 endif
 ifeq ($(MOZ_PKG_FORMAT),ZIP)
 ifdef MOZ_EXTERNAL_SIGNING_FORMAT
-# We can't use sha2signcode on zip files
-MOZ_EXTERNAL_SIGNING_FORMAT := $(filter-out sha2signcode,$(MOZ_EXTERNAL_SIGNING_FORMAT))
+# We can't use osslsigncode on zip files
+MOZ_EXTERNAL_SIGNING_FORMAT := $(filter-out osslsigncode,$(MOZ_EXTERNAL_SIGNING_FORMAT))
 endif
 PKG_SUFFIX	= .zip
 INNER_MAKE_PACKAGE	= $(ZIP) -r9D $(PACKAGE) $(MOZ_PKG_DIR) \
   -x \*/.mkdir.done
 INNER_UNMAKE_PACKAGE	= $(UNZIP) $(UNPACKAGE)
 MAKE_SDK = $(call py_action,zip,$(SDK) $(MOZ_APP_NAME)-sdk)
 endif
 ifeq ($(MOZ_PKG_FORMAT),SFX7Z)

--- a/tools/update-packaging/Makefile.in
+++ b/tools/update-packaging/Makefile.in
@@ -41,18 +41,18 @@ UNPACKAGE	= '$(PACKAGE_BASE_DIR)/$(PACKA
 endif
 endif
 
 include $(topsrcdir)/config/rules.mk
 include $(topsrcdir)/toolkit/mozapps/installer/signing.mk
 include $(topsrcdir)/toolkit/mozapps/installer/packager.mk
 
 ifdef MOZ_EXTERNAL_SIGNING_FORMAT
-# We can't use sha2signcode on mar files
-MOZ_EXTERNAL_SIGNING_FORMAT := $(filter-out sha2signcode,$(MOZ_EXTERNAL_SIGNING_FORMAT))
+# We can't use osslsigncode on mar files
+MOZ_EXTERNAL_SIGNING_FORMAT := $(filter-out osslsigncode,$(MOZ_EXTERNAL_SIGNING_FORMAT))
 MOZ_EXTERNAL_SIGNING_FORMAT := mar $(MOZ_EXTERNAL_SIGNING_FORMAT)
 endif
 
 dir-stage := $(call mkdir_deps,$(STAGE_DIR))
 
 complete-patch:: $(dir-stage)
 ifeq ($(OS_TARGET), WINNT)
 	test -f $(UNPACKAGE)