{config, ...}: {
  flake.commonModules.firefox-extensions = {
    pkgs,
    inputs,
    ...
  }: let
    inherit (inputs.firefox-addons.lib.${pkgs.stdenv.hostPlatform.system}) buildFirefoxXpiAddon;
  in {
    nixpkgs.overlays = [
      (final: prev: {
        firefox-extensions = {
          italiano-it-language-pack = pkgs.callPackage config.flake.commonModules.firefox-italiano-it-language-pack {
            inherit buildFirefoxXpiAddon;
          };
          dizionario-italiano = pkgs.callPackage config.flake.commonModules.firefox-dizionario-italiano {
            inherit buildFirefoxXpiAddon;
          };
          deutsch-de-language-pack = pkgs.callPackage config.flake.commonModules.firefox-deutsch-de-language-pack {
            inherit buildFirefoxXpiAddon;
          };
        };
      })
    ];
  };
}