{
    config,
    lib,
    pkgs,
    ...
}: {
    config = let
        buildFirefoxXpiAddon = lib.makeOverridable ({
            stdenv ? pkgs.stdenv,
            fetchurl ? pkgs.fetchurl,
            pname,
            version,
            addonId,
            url,
            sha256,
            ...
        }:
            stdenv.mkDerivation {
                name = "${pname}-${version}";
                src = fetchurl {inherit url sha256;};
                preferLocalBuild = true;
                allowSubstitutes = true;
                buildCommand = ''
                    dst="$out/share/mozilla/extensions/{ec8030f7-c20a-464f-9b0e-13a3a9397384}"
                    mkdir -p "$dst"
                    install -v -m644 "$src" "$dst/${addonId}.xpi"
                '';
            });

        extra-addons = {
            yomichan = buildFirefoxXpiAddon {
                pname = "yomichan";
                version = "20.5.22.1";
                addonId = "{a9226ee9-7998-47bd-b72e-a1b56df7f77b}";
                url = "https://addons.mozilla.org/firefox/downloads/file/3585060/yomichan-20.5.22.1.xpi";
                sha256 = "sha256-/icvPD/nCJYS31owfYMD25QzFjsxAqapy/UAehhxsy8=";
            };
        };
    in {
        programs.firefox = {
            enable = true;
            package = pkgs.firefox-devedition;
            profiles = {
                "schizo.dev-edition-default" = {
                    id = 0;
                    name = "dev-edition-default";
                    isDefault = true;
                    search = {
                        default = "SearXNG Sapti";
                        engines = {
                            "SearXNG Sapti" = {
                                urls = [{ template = "https://search.sapti.me/search?q={searchTerms}"; }];
                                iconUpdateURL = "https://search.sapti.me/favicon.ico";
                                updateInterval = 24 * 60 * 60 * 1000;
                                definedAliases = [ "@sx" ];
                            };
                            "NixOS Packages" = {
                                urls = [{
                                    template = "https://search.nixos.org/packages";
                                    params = [
                                        { name = "channel"; value = "unstable"; }
                                        { name = "query"; value = "{searchTerms}"; }
                                    ];
                                    icon = "${pkgs.nixos-icons}/share/icons/hicolor/scalable/apps/nix-snowflake.svg";
                                    definedAliases = [ "@np" ];
                                }];
                            };
                            "NixOS Options" = {
                                urls = [{
                                    template = "https://search.nixos.org/options";
                                    params = [
                                        { name = "channel"; value = "unstable"; }
                                        { name = "query"; value = "{searchTerms}"; }
                                    ];
                                    icon = "${pkgs.nixos-icons}/share/icons/hicolor/scalable/apps/nix-snowflake.svg";
                                    definedAliases = [ "@no" ];
                                }];
                            };
                            "NixOS Wiki" = {
                                urls = [{ template = "https://nixos.wiki/index.php?search={searchTerms}"; }];
                                iconUpdateURL = "https://nixos.wiki/favicon.png";
                                updateInterval = 24 * 60 * 60 * 1000;
                                definedAliases = [ "@nw" ];
                            };
                        };
                        force = true;
                    };
                    extensions = with pkgs.nur.repos.rycee.firefox-addons; [
                        ublock-origin
                        sponsorblock
                        tridactyl
                        violentmonkey
                        darkreader
                        keepassxc-browser
                        redirector
                        auto-tab-discard
                        extra-addons.yomichan
                    ];
                    settings = {
                        "extensions.pocket.enabled" = false;
                    };
                };
            };
        };
    };
}