diff -up mozilla-release/security/build/Makefile.in.build mozilla-release/security/build/Makefile.in
--- mozilla-release/security/build/Makefile.in.build	2013-12-05 17:07:53.000000000 +0100
+++ mozilla-release/security/build/Makefile.in	2013-12-09 15:10:17.177970414 +0100
@@ -128,7 +128,6 @@ DEFAULT_GMAKE_FLAGS += NSPR_INCLUDE_DIR=
 DEFAULT_GMAKE_FLAGS += NSPR_LIB_DIR=$(NSPR_LIB_DIR)
 DEFAULT_GMAKE_FLAGS += MOZILLA_CLIENT=1
 DEFAULT_GMAKE_FLAGS += NO_MDUPDATE=1
-DEFAULT_GMAKE_FLAGS += NSS_ENABLE_ECC=1
 DEFAULT_GMAKE_FLAGS += NSINSTALL="$(NSINSTALL)"
 ifeq ($(OS_ARCH),WINNT)
 DEFAULT_GMAKE_FLAGS += INSTALL="$(NSINSTALL) -t"
diff -up mozilla-release/security/manager/ssl/src/Makefile.in.build mozilla-release/security/manager/ssl/src/Makefile.in
--- mozilla-release/security/manager/ssl/src/Makefile.in.build	2013-12-09 15:10:17.177970414 +0100
+++ mozilla-release/security/manager/ssl/src/Makefile.in	2013-12-09 15:11:02.282047401 +0100
@@ -6,7 +6,6 @@
 
 EXPORT_LIBRARY	= 1
 DEFINES += \
-  -DNSS_ENABLE_ECC \
   -DDLL_PREFIX=\"$(DLL_PREFIX)\" \
   -DDLL_SUFFIX=\"$(DLL_SUFFIX)\" \
   $(NULL)