diff --git a/pkgs/system/all-packages-generic.nix b/pkgs/system/all-packages-generic.nix
index 62f63f23e5d..17673943d09 100644
--- a/pkgs/system/all-packages-generic.nix
+++ b/pkgs/system/all-packages-generic.nix
@@ -1586,14 +1586,7 @@ rec {
     inherit (xlibs) libXi;
   };
 
-  firefox = (import ../applications/networking/browsers/firefox) {
-    inherit fetchurl stdenv pkgconfig perl zip;
-    inherit (gtkLibs) gtk;
-    inherit (gnome) libIDL;
-    inherit (xlibs) libXi;
-  };
-
-  firefoxBeta = (import ../applications/networking/browsers/firefox-1.5beta) {
+  firefox = (import ../applications/networking/browsers/firefox-1.5beta) {
     inherit fetchurl stdenv pkgconfig perl zip;
     inherit (gtkLibs) gtk;
     inherit (gnome) libIDL;
@@ -1612,8 +1605,6 @@ rec {
 
   firefoxWrapper = wrapFirefox firefox;
 
-  firefoxBetaWrapper = wrapFirefox firefoxBeta;
-
   flashplayer = (import ../applications/networking/browsers/mozilla-plugins/flashplayer) {
     inherit fetchurl stdenv zlib;
     inherit (xlibs) libXmu;
diff --git a/pkgs/system/populate-cache.nix b/pkgs/system/populate-cache.nix
index a49f0b8a0ff..4ee33082d77 100644
--- a/pkgs/system/populate-cache.nix
+++ b/pkgs/system/populate-cache.nix
@@ -68,7 +68,6 @@ let {
     pan
     sylpheed
     firefoxWrapper
-    firefoxBetaWrapper
     thunderbird
     lynx
     gaim