diff --git a/pkgs/applications/networking/browsers/firefox/default.nix b/pkgs/applications/networking/browsers/firefox/default.nix
index e23a6d94ec1a..4f4a88f01c80 100644
--- a/pkgs/applications/networking/browsers/firefox/default.nix
+++ b/pkgs/applications/networking/browsers/firefox/default.nix
@@ -15,14 +15,14 @@
 
 assert stdenv.gcc ? libc && stdenv.gcc.libc != null;
 
-let version = "31.0"; in
+let version = "32.0"; in
 
 stdenv.mkDerivation rec {
   name = "firefox-${version}";
 
   src = fetchurl {
     url = "http://ftp.mozilla.org/pub/mozilla.org/firefox/releases/${version}/source/firefox-${version}.source.tar.bz2";
-    sha1 = "a6c3e25ee3aeb7da42db2aaeb50a385d63532beb";
+    sha1 = "5cb7644af9741ebcdb3a21b777362913908c8f41";
   };
 
   buildInputs =