diff -up mozilla-esr38/configure.in.nss-3.19.1 mozilla-esr38/configure.in
--- mozilla-esr38/configure.in.nss-3.19.1	2015-10-29 11:17:50.666423563 +0100
+++ mozilla-esr38/configure.in	2015-10-29 11:28:06.142004473 +0100
@@ -52,7 +52,7 @@ dnl ====================================
 MOZJPEG=62
 MOZPNG=10616
 NSPR_VERSION=4
-NSPR_MINVER=4.10.10
+NSPR_MINVER=4.10.8
 NSS_VERSION=3
 
 dnl Set the minimum version of toolkit libs used by mozilla
@@ -3627,7 +3627,7 @@ MOZ_ARG_WITH_BOOL(system-nss,
     _USE_SYSTEM_NSS=1 )
 
 if test -n "$_USE_SYSTEM_NSS"; then
-    AM_PATH_NSS(3.19.2.4, [MOZ_NATIVE_NSS=1], [AC_MSG_ERROR([you don't have NSS installed or your version is too old])])
+    AM_PATH_NSS(3.19.1, [MOZ_NATIVE_NSS=1], [AC_MSG_ERROR([you don't have NSS installed or your version is too old])])
 fi
 
 if test -n "$MOZ_NATIVE_NSS"; then