{
  definition = lib: pkgs: (
    let
      version = "109.0.1";
      pname = "firefox";
      appName = "Firefox";
      src = pkgs.fetchurl {
        url =
          "https://download-installer.cdn.mozilla.net/pub/firefox/releases/${version}/mac/en-CA/Firefox%20${version}.dmg";
        sha256 = "sha256-V/8W3qqYhJmte2tq/ZSPtYChdhv8WFQoSORYRaxva9Y=";
        name = "${pname}_${version}.dmg";
      };
    in
    lib.mk-mac-binpkg { inherit pkgs src pname appName version; }
  );
  systems = [ "aarch64-darwin" "x86_64-darwin" ];
}