diff --git a/pkgs/applications/networking/browsers/firefox-2/default.nix b/pkgs/applications/networking/browsers/firefox-2/default.nix
index a9e97eef857..31da6ea2b46 100644
--- a/pkgs/applications/networking/browsers/firefox-2/default.nix
+++ b/pkgs/applications/networking/browsers/firefox-2/default.nix
@@ -10,12 +10,12 @@
 }:
 
 stdenv.mkDerivation {
-  name = "firefox-2.0.0.16";
+  name = "firefox-2.0.0.17";
 
   builder = ./builder.sh;
   src = fetchurl {
-    url = http://releases.mozilla.org/pub/mozilla.org/firefox/releases/2.0.0.16/source/firefox-2.0.0.16-source.tar.bz2;
-    sha1 = "ae1d451ce85a5515b37d73d2c4b7cb1377206d86";
+    url = http://releases.mozilla.org/pub/mozilla.org/firefox/releases/2.0.0.17/source/firefox-2.0.0.17-source.tar.bz2;
+    sha1 = "ba95d9f64f2307b109dbce25d7a17af7e68298ed";
   };
 
   buildInputs = [
diff --git a/pkgs/applications/networking/browsers/firefox-3/default.nix b/pkgs/applications/networking/browsers/firefox-3/default.nix
index 47a01327740..8095033953c 100644
--- a/pkgs/applications/networking/browsers/firefox-3/default.nix
+++ b/pkgs/applications/networking/browsers/firefox-3/default.nix
@@ -11,11 +11,11 @@
 }:
 
 stdenv.mkDerivation {
-  name = "firefox-3.0.1";
+  name = "firefox-3.0.3";
 
   src = fetchurl {
-    url = http://releases.mozilla.org/pub/mozilla.org/firefox/releases/3.0.1/source/firefox-3.0.1-source.tar.bz2;
-    sha1 = "ba3bb0b02404cf1abfb6189b156b2f4eb02e8975";
+    url = http://releases.mozilla.org/pub/mozilla.org/firefox/releases/3.0.3/source/firefox-3.0.3-source.tar.bz2;
+    sha1 = "089a41ff079cd37d39d19cf3a51daba07337db2c";
   };
 
   buildInputs = [