{
  config,
  lib,
  pkgs,
  ...
}: {
  programs.firefox = {
    enable = true;
    policies = {
      BlockAboutProfiles = true;
      Cookies = {
        Behavior = "reject-tracker-and-partition-foreign";
        BehaviorPrivateBrowsing = "reject";
        Locked = true;
      };
      DefaultDownloadDirectory = "\${home}/Downloads";
      DisableAppUpdate = true;
      DisableFirefoxAccounts = true;
      DisableFirefoxScreenshots = true;
      DisableFirefoxStudies = true;
      DisableFormHistory = true;
      DisablePocket = true;
      DisableProfileImport = true;
      DisableSetDesktopBackground = true;
      DisableSystemAddonUpdate = true;
      DisableTelemetry = true;
      DisplayBookmarksToolbar = "always";
      DisplayMenuBar = "default-off";
      DontCheckDefaultBrowser = true;
      EnableTrackingProtection = {
        Value = true;
        Locked = true;
        Cryptomining = true;
        Fingerprinting = true;
      };
      ExtensionSettings = {
        "queryamoid@kaply.com" = {
          installation_mode = "force_installed";
          install_url = "https://github.com/mkaply/queryamoid/releases/download/v0.1/query_amo_addon_id-0.1-fx.xpi";
        };
        "uBlock0@raymondhill.net" = {
          installation_mode = "force_installed";
          install_url = "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi";
        };
        "addon@simplelogin" = {
          installation_mode = "force_installed";
          install_url = "https://addons.mozilla.org/firefox/downloads/latest/simplelogin/latest.xpi";
        };
        "{8446b178-c865-4f5c-8ccc-1d7887811ae3}" = {
          installation_mode = "force_installed";
          install_url = "https://addons.mozilla.org/firefox/downloads/latest/catppuccin-mocha-lavender-git/latest.xpi";
        };
      };
      FirefoxHome = {
        Search = true;
        TopSites = false;
        SponsoredTopSites = false;
        Highlights = false;
        Pocket = false;
        SponsoredPocket = false;
        Snippets = false;
        Locked = true;
      };
      FirefoxSuggest = {
        WebSuggestions = false;
        SponsoredSuggestions = false;
        ImproveSuggest = false;
        Locked = true;
      };
      HardwareAcceleration = true;
      Homepage = {
        Locked = true;
        StartPage = "homepage-locked";
      };
      NewTabPage = true;
      NoDefaultBookmarks = false;
      OfferToSaveLogins = false;
      PasswordManagerEnabled = false;
      PDFjs = {Enabled = false;};
      Permissions = {
        Autoplay = {
          Default = "block-audio-video";
        };
      };
      PictureInPicture = {Enabled = true;};
      PopupBlocking = {Default = true;};
      RequestedLocales = ["en-GB"];
      SearchBar = "unified";
      ShowHomeButton = true;
      StartDownloadsInTempDirectory = true;
    };
    profiles.default = {
      settings = {
        "app.shield.optoutstudies.enabled" = false;
        "browser.bookmarks.addedImportButton" = false;
        "browser.bookmarks.showMobileBookmarks" = false;
        "browser.toolbars.bookmarks.visibility" = "newtab";
        "browser.contentblocking.category" = "strict";
        "browser.search.region" = "GB";
        "browser.search.isUS" = false;
        "browser.warnOnQuitShortcut" = false;
        "distribution.searchplugins.defaultLocale" = "en-GB";
        "doh-rollout.home-region" = "GB";
        "extensions.activeThemeID" = "{c6698fd1-fe9b-4eae-95d5-fe1703820469}";
        "extensions.formautofill.creditCards.enabled" = false;
        "general.useragent.locale" = "en-GB";
        "intl.accept_languages" = "en-gb,en";
        "intl.locale.requested" = "en-gb,en";
        "intl.regional_prefs.use_os_locales" = false;
        "media.eme.enabled" = true;
        "privacy.webrtc.legacyGlobalIndicator" = false;
        "signon.management.page.breach-alerts.enabled" = false;
        "signon.rememberSignons" = false;
        "browser.newtabpage.pinned" = [
          {
            title = "NixOS Wiki";
            url = "https://nixos.wiki";
          }
          {
            title = "Arch Wiki";
            url = "https://wiki.archlinux.org";
          }
        ];
      };
      search = {
        default = "DuckDuckGo";
        force = true;
        order = ["DuckDuckGo"];
        engines = import ./search-engines/default.nix pkgs;
      };
      bookmarks = [
        {
          name = "toplevel";
          toolbar = true;
          bookmarks = import ./bookmarks/default.nix lib;
        }
      ];
    };
  };
}