{
  config,
  flakes,
  pkgs,
  ...
}:
let
  ff-pkgs = flakes.firefox-addons.packages.${pkgs.system};
  lock-false = {
    Value = false;
    Status = "locked";
  };
  # lock-true = {
  #   Value = true;
  #   Status = "locked";
  # };
in
{

  home.file."${config.programs.firefox.profilesPath}/main/chrome".source =
    "${flakes.firefox-sidebar-css}";
  programs.firefox = {
    enable = true;
    package = pkgs.wrapFirefox pkgs.firefox-unwrapped {
      extraPolicies = {
        DisableFormHistory = true;
        OfferToSaveLogins = false;
        PasswordManagerEnabled = false;
        AppAutoUpdate = false;
        DisableFirefoxStudies = true;
        DisablePocket = true;
        DisableTelemetry = true;
        UserMessaging = {
          WhatsNew = true;
          ExtensionRecommendations = false;
          FeatureRecommendations = false;
          UrlbarInterventions = false;
          SkipOnboarding = true;
          MoreFromMozilla = false;
          Locked = true;
        };
        FirefoxHome = {
          Search = true;
          TopSites = false;
          SponsoredTopSites = false;
          Highlights = false;
          Pocket = false;
          SponsoredPocket = false;
          Snippets = false;
          Locked = false;
        };
        FirefoxSuggest = {
          WebSuggestions = false;
          SponsoredSuggestions = false;
          ImproveSuggest = false;
          Locked = true;
        };
        # TODO: https://github.com/TheRealGramdalf/nixos/blob/83f4339b121175f47940314bf5811080ac42c316/users/games/firefox/privacy.nix
      };

    };

    profiles.default = {
      id = 0;
      name = "profile_0";
      isDefault = true;
      settings = {
        # specify profile-specific preferences here; check about:config for options
        "browser.newtabpage.activity-stream.feeds.section.highlights" = false;
        "browser.startup.page" = 3; # Restore previous tabs
        "extensions.autoDisableScopes" = 0;
        "extensions.pocket.enabled" = lock-false;
        "browser.tabs.closeWindowWithLastTab" = lock-false;
        "sidebar.position_start" = false; # sidebar on the right
        "toolkit.legacyUserProfileCustomizations.stylesheets" = true;
      };

      userChrome = builtins.readFile ./userChrome.css;
      userContent = builtins.readFile ./userChrome.css;

      extensions.packages = with ff-pkgs; [
        bitwarden
        ublock-origin
        sidebery
        sponsorblock
        # vimium
      ];

      bookmarks = {
        force = true;
        settings = [
          {
            keyword = "!w";
            url = "https://www.wikipedia.org/w/index.php?title=Special:Search&search=%s";
          }
          {
            keyword = "!m";
            url = "https://www.google.com/maps?q=%s";
          }
          {
            keyword = "!git";
            url = "https://github.com/search?q=%s&type=code";
          }
          {
            keyword = "!std";
            url = "https://std.rs%s";
          }
          {
            keyword = "!rust";
            url = "https://docs.rs/releases/search?query=%s";
          }
          {
            keyword = "!np";
            url = "https://search.nixos.org/packages?query=%s";
          }
          {
            keyword = "!nf";
            url = "https://search.nixos.org/flakes?query=%s";
          }
        ];
      };

      # extensions.settings = {
      #   "${ff-pkgs.sidebery.addonId}".settings = {
      #     sidebar = {
      #       # panels = with builtins; with lib; listToAttrs (map ffContainerToSideberryPanel (attrsToList containers));
      #       # nav = [ "Personal" "Programming"];
      #     };
      #     # https://github.com/Dash-L/nixconfig/blob/c30f6d1486a3fe2b3793ab0cb13a88edefe83b7a/home/firefox.nix#L82
      #     settings = {
      #       pinnedTabsPosition = "top";
      #       hideEmptyPanels = false;
      #       activateAfterClosing = "prev";
      #       activateAfterClosingStayInPanel = true;
      #       newTabCtxReopen = true;
      #     };
      #   };
      # };
    };
  };

  xdg.mimeApps = {
    defaultApplications."x-scheme-handler/http" = [
      "firefox.desktop"
    ];
    defaultApplications."x-scheme-handler/https" = [
      "firefox.desktop"
    ];
    defaultApplications."text/html" = [ "firefox.desktop" ];
    defaultApplications."x-scheme-handler/about" = [ "firefox.desktop" ];
    defaultApplications."x-scheme-handler/unknown" = [ "firefox.desktop" ];
  };
}