{
  inputs,
  outputs,
  config,
  pkgs,
  ...
}:
with inputs; {
  home.sessionVariables.DEFAULT_BROWSER = "${pkgs.firefox}/bin/firefox";

  programs.firefox = {
    enable = true;
    package =
      pkgs.firefox.override {cfg = {enableGnomeExtensions = true;};};
    profiles.xqtc = {
      isDefault = true;
      extensions = with inputs.firefox-addons.packages.${pkgs.system}; [
        ublock-origin
        sponsorblock
        # dearrow
        pronoundb
        tabcenter-reborn
        firefox-color
        unpaywall
        bitwarden
        sidebery
        leechblock-ng
        darkreader
        ipvfoo
        stylus
        shinigami-eyes
        violentmonkey
        vimium-c
        noscript
      ];
      search = {
        default = "DuckDuckGo";
        force = true;
        engines = {
          "SearX" = {
            urls = [
              {
                template = "https://searx.org/search";
                params = [
                  {
                    name = "q";
                    value = "{searchTerms}";
                  }
                ];
              }
            ];

            iconUpdateURL = "https://searx.org/favicon.ico";
            definedAliases = ["@sx"];
          };
          "Nix Packages" = {
            urls = [
              {
                template = "https://search.nixos.org/packages";
                params = [
                  {
                    name = "type";
                    value = "packages";
                  }
                  {
                    name = "query";
                    value = "{searchTerms}";
                  }
                ];
              }
            ];

            icon = "${pkgs.nixos-icons}/share/icons/hicolor/scalable/apps/nix-snowflake.svg";
            definedAliases = ["@np"];
          };
          "Nix Options" = {
            urls = [
              {
                template = "https://search.nixos.org/options";
                params = [
                  {
                    name = "type";
                    value = "options";
                  }
                  {
                    name = "query";
                    value = "{searchTerms}";
                  }
                ];
              }
            ];

            icon = "${pkgs.nixos-icons}/share/icons/hicolor/scalable/apps/nix-snowflake.svg";
            definedAliases = ["@no"];
          };

          "Nix Dev" = {
            urls = [
              {
                template = "https://nix.dev/search.html";
                params = [
                  {
                    name = "q";
                    value = "{searchTerms}";
                  }
                ];
              }
            ];
            icon = "${pkgs.nixos-icons}/share/icons/hicolor/scalable/apps/nix-snowflake.svg";
            definedAliases = ["@nd"];
          };

          "NixOS Wiki" = {
            urls = [
              {
                template = "https://nixos.wiki/index.php?search={searchTerms}";
              }
            ];
            iconUpdateURL = "https://nixos.wiki/favicon.png";
            updateInterval = 24 * 60 * 60 * 1000; # every day
            definedAliases = ["@nw"];
          };

          "nixpkgs PR Tracker" = {
            urls = [
              {
                template = "https://nixpk.gs/pr-tracker.html?pr={searchTerms}";
              }
            ];
            iconUpdateURL = "https://nixos.wiki/favicon.png";
            updateInterval = 24 * 60 * 60 * 1000; # every day
            definedAliases = ["@npr"];
          };

          "Reddit" = {
            urls = [
              {
                template = "https://reddit.com/r/{searchTerms}";
              }
            ];
            iconUpdateURL = "https://reddit.com/favicon.ico";
            updateInterval = 24 * 60 * 60 * 1000; # every day
            definedAliases = ["@r"];
          };

          "Github Repos" = {
            urls = [
              {
                template = "https://github.com/search?q={searchTerms}&type=repositories";
              }
            ];
            iconUpdateURL = "https://github.com/favicon.ico";
            updateInterval = 24 * 60 * 60 * 1000; # every day
            definedAliases = ["@ghr"];
          };

          "Github Code" = {
            urls = [
              {
                template = "https://github.com/search?q={searchTerms}&type=code";
              }
            ];
            iconUpdateURL = "https://github.com/favicon.ico";
            updateInterval = 24 * 60 * 60 * 1000; # every day
            definedAliases = ["@ghc"];
          };

          "Github PRs" = {
            urls = [
              {
                template = "https://github.com/search?q={searchTerms}&type=pullrequests";
              }
            ];
            iconUpdateURL = "https://github.com/favicon.ico";
            updateInterval = 24 * 60 * 60 * 1000; # every day
            definedAliases = ["@ghpr"];
          };

          "Github Users" = {
            urls = [
              {
                template = "https://github.com/search?q={searchTerms}&type=users";
              }
            ];
            iconUpdateURL = "https://github.com/favicon.ico";
            updateInterval = 24 * 60 * 60 * 1000; # every day
            definedAliases = ["@ghu"];
          };
          "Hackage" = {
            urls = [
              {
                template = "https://hackage.haskell.org/packages/browse?terms={searchTerms}";
              }
            ];
            iconUpdateURL = "https://hackage.haskell.org/static/favicon.png";
            updateInterval = 24 * 60 * 60 * 1000; # every day
            definedAliases = ["@hak"];
          };
          "crates.io" = {
            urls = [
              {
                template = "https://crates.io/search?q={searchTerms}";
              }
            ];
            iconUpdateURL = "https://crates.io/favicon.ico";
            updateInterval = 24 * 60 * 60 * 1000; # every day
            definedAliases = ["@cio"];
          };
          "OSDev Wiki" = {
            urls = [
              {
                template = "https://wiki.osdev.org/index.php?search={searchTerms}";
              }
            ];
            iconUpdateURL = "https://wiki.osdev.org/favicon.ico";
            updateInterval = 24 * 60 * 60 * 1000; # every day
            definedAliases = ["@osdev"];
          };
          "YouTube" = {
            urls = [
              {
                template = "https://youtube.com/results?search_query={searchTerms}";
              }
            ];
            iconUpdateURL = "https://youtube.com/favicon.ico";
            updateInterval = 24 * 60 * 60 * 1000; # every day
            definedAliases = ["@yt"];
          };

          "Bing".metaData.hidden = true;
          "Google".metaData.hidden = true;
          "DuckDuckGo".metaData.alias = "@ddg";
        };
      };
      settings = {
        "app.normandy.first_run" = false;
        "app.shield.optoutstudies.enabled" = false;
        "privacy.donotttrackheader.enabled" = true;
        "browser.startup.homepage" = "about:home";
        "browser.search.region" = "DE";
        "browser.search.isUS" = false;
        "browser.theme.content-theme" = "0";
        "browser.theme.toolbar-theme" = "0";
        "browser.newtabpage.activity-stream.showSponsored" = false;
        "browser.newtabpage.activity-stream.showSponsoredTopSites" = false;
        "media.eme.enabled" = true;
        "services.sync.prefs.sync.browser.newtabpage.activity-stream.showSponsored" =
          false;
        "services.sync.prefs.sync.browser.newtabpage.activity-stream.showSponsoredTopSites" =
          false;
        "browser.toolbars.bookmarks.visibility" = "never";
        "general.useragent.locale" = "de-DE";
        "distribution.searchplugins.defaultLocale" = "de-DE";
        "signon.rememberSignons" = false;
        "toolkit.legacyUserProfileCustomizations.stylesheets" =
          true; # Needed to allow userChrome.css
      };
      # userChrome = ''
      #          #TabsToolbar {
      #            display: none; !important
      #          }
      #          #sidebar-header {
      #            display: none;
      #          }
      # '';
      userChrome = builtins.readFile ../config-files/catpuccin-firefox.css;
    };
  };
}