diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index fa38d84de82..6fad754535a 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6803,7 +6803,7 @@ let
   gmu = callPackage ../applications/audio/gmu { };
 
   gnash = callPackage ../applications/video/gnash {
-    xulrunner = icecatXulrunner3;
+    xulrunner = firefoxPkgs.xulrunner;
     inherit (gnome) gtkglext;
   };