{pkgs, ...}: {
  programs.firefox = {
    enable = true;
    policies = {
      DisableAppUpdate = true;
      DisableFirefoxAccounts = false;
      DisableFirefoxStudies = true;
      DisablePocket = true;
      DisableTelemetry = true;
      DontCheckDefaultBrowser = true;
      EnableTrackingProtection = true;
      NoDefaultBookmarks = true;
      OfferToSaveLogins = false;
      OfferToSaveLoginsDefault = false;
      PasswordManagerEnabled = false;
      FirefoxHome = {
        Search = true;
        Pocket = false;
        Snippets = false;
        TopSites = false;
        Highlights = false;
      };
      UserMessaging = {
        ExtensionRecommendations = false;
        SkipOnboarding = true;
      };
      Cookies = {
        ExpireAtSessionEnd = true;
        RejectTracker = true;
      };
      SanitizeOnShutdown = {
        Cache = true;
        Cookies = true;
        Downloads = true;
        FormData = true;
        SiteSettings = true;
        History = false;
      };
    };
    profiles = {
      "aria" = {
        extensions = with pkgs.nur.repos.rycee.firefox-addons; [
          vimium
          tabcenter-reborn
          ublock-origin
          bitwarden
          canvasblocker
          sponsorblock
          xbrowsersync
        ];
        settings = {
          "browser.aboutConfig.showWarning" = false;
          "browser.startup.page" = 1;
          "geo.provider.network.url" = "https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%";
          "intl.accept_languages" = "en-US, en";
          "app.update.auto" = false;
          "browser.download.useDownloadDir" = false;
          "browser.download.manager.addToRecentDocs" = false;
          "browser.urlbar.suggest.addons" = false;
          "browser.urlbar.suggest.clipboard" = false;
          "browser.urlbar.suggest.engines" = false;
          "browser.urlbar.suggest.history" = false;
          "browser.urlbar.suggest.pocket" = false;
          "browser.urlbar.suggest.topsites" = false;
          "browser.urlbar.suggest.searches" = false;
          "browser.urlbar.suggest.trending" = false;
          "browser.tabs.firefox-view" = false;
          "toolkit.legacyUserProfileCustomizations.stylesheets" = true;
          "browser.toolbars.bookmarks.visibility" = "never";
          "extensions.activeThemeID" = "firefox-compact-dark@mozilla.org";
        };
        search = {
          force = true;
          default = "Celtic Lite";
          engines = {
            "Nix Packages" = {
              urls = [
                {
                  template = "https://search.nixos.org/packages";
                  params = [
                    {
                      name = "type";
                      value = "packages";
                    }
                    {
                      name = "channel";
                      value = "unstable";
                    }
                    {
                      name = "query";
                      value = "{searchTerms}";
                    }
                  ];
                }
              ];
              icon = "${pkgs.nixos-icons}/share/icons/hicolor/scalable/apps/nix-snowflake.svg";
              definedAliases = ["@np"];
            };
            "Nix Options" = {
              urls = [
                {
                  template = "https://search.nixos.org/options";
                  params = [
                    {
                      name = "type";
                      value = "options";
                    }
                    {
                      name = "channel";
                      value = "unstable";
                    }
                    {
                      name = "query";
                      value = "{searchTerms}";
                    }
                  ];
                }
              ];
              icon = "${pkgs.nixos-icons}/share/icons/hicolor/scalable/apps/nix-snowflake.svg";
              definedAliases = ["@no"];
            };
            "Celtic Lite" = {
              urls = [
                {
                  template = "https://search.celticlite.com/search";
                  params = [
                    {
                      name = "q";
                      value = "{searchTerms}";
                    }
                  ];
                }
              ];
              definedAliases = ["@cl"];
            };
            "Catgirl" = {
              urls = [
                {
                  template = "https://sx.catgirl.cloud/search";
                  params = [
                    {
                      name = "q";
                      value = "{searchTerms}";
                    }
                  ];
                }
              ];
              definedAliases = ["@cg"];
            };
            "Google".metaData.hidden = true;
            "Amazon.com".metaData.hidden = true;
            "Bing".metaData.hidden = true;
            "eBay".metaData.hidden = true;
          };
        };
        userChrome = ''
          #firefox-view-button {
            visibility: collapse;
          }
          #alltabs-button {
            visibility: collapse;
          }
          #tabbrowser-tabs {
            border-inline-start: none !important;
          }
        '';
      };
    };
  };
}