diff --git a/pkgs/applications/networking/browsers/firefox/default.nix b/pkgs/applications/networking/browsers/firefox/default.nix
index 0c1a974ec69..a483399aa02 100644
--- a/pkgs/applications/networking/browsers/firefox/default.nix
+++ b/pkgs/applications/networking/browsers/firefox/default.nix
@@ -17,14 +17,14 @@ assert stdenv.gcc ? libc && stdenv.gcc.libc != null;
 
 rec {
 
-  firefoxVersion = "29.0.1";
+  firefoxVersion = "30.0";
 
-  xulVersion = "29.0.1"; # this attribute is used by other packages
+  xulVersion = "30.0"; # this attribute is used by other packages
 
 
   src = fetchurl {
     url = "http://ftp.mozilla.org/pub/mozilla.org/firefox/releases/${firefoxVersion}/source/firefox-${firefoxVersion}.source.tar.bz2";
-    sha1 = "2819ef63403de2bcfff5496bd21a3b8cb5dfce82";
+    sha1 = "bll9hxf31gvg9db6gxgmq25qsjif3p11";
   };
 
   commonConfigureFlags =
diff --git a/pkgs/development/libraries/nspr/default.nix b/pkgs/development/libraries/nspr/default.nix
index f6848ae5860..0355ce25c62 100644
--- a/pkgs/development/libraries/nspr/default.nix
+++ b/pkgs/development/libraries/nspr/default.nix
@@ -1,13 +1,13 @@
 { stdenv, fetchurl }:
 
-let version = "4.10.5"; in
+let version = "4.10.6"; in
 
 stdenv.mkDerivation {
   name = "nspr-${version}";
 
   src = fetchurl {
     url = "http://ftp.mozilla.org/pub/mozilla.org/nspr/releases/v${version}/src/nspr-${version}.tar.gz";
-    sha1 = "891de2b62ad42f9b38808a0aa58c95e8cbd5c9a9";
+    sha1 = "3hzcslcfql1rg7drvcn4nmrigy7jfgwz";
   };
 
   preConfigure = "cd nspr";