[firefox] build fix

[Martin Stransky]

commit 4a2e88025ffdbaa1c7321065ff963dfe941a7754
Author: Martin Stransky <stransky at anakreon.cz>
Date:   Tue Oct 9 14:28:22 2012 +0200

    build fix

 firefox-mozconfig |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/firefox-mozconfig b/firefox-mozconfig
index b2ef22a..8278b5e 100644
--- a/firefox-mozconfig
+++ b/firefox-mozconfig
@@ -2,6 +2,8 @@
 
 ac_add_options --prefix="$PREFIX"
 ac_add_options --libdir="$LIBDIR"
+ac_add_options --with-system-nspr
+ac_add_options --with-system-nss
 ac_add_options --with-system-jpeg
 ac_add_options --with-system-zlib
 #ac_add_options --with-system-png