nix-config/modules/hm/desktop/firefox.nix

{
  flake.modules.homeManager.desktop =
    {
      pkgs,
      userName,
      ...
    }:
    {
      programs.firefox = {
        enable = true;

        package = pkgs.firefox.override {
          extraPolicies = {
            CaptivePortal = false;
            DisableFirefoxStudies = true;
            DisablePocket = true;
            DisableTelemetry = true;
            DisableFirefoxAccounts = false;
            NoDefaultBookmarks = true;
            OfferToSaveLogins = false;
            OfferToSaveLoginsDefault = false;
            PasswordManagerEnabled = false;
            FirefoxHome = {
              Search = true;
              Pocket = false;
              Snippets = false;
              TopSites = false;
              Highlights = false;
            };
            UserMessaging = {
              ExtensionRecommendations = false;
              SkipOnboarding = true;
            };
          };
        };

        profiles = {
          ${userName} = {
            id = 0;
            name = "tux";
            search = {
              force = true;
              default = "google";
            };
            settings = {
              "general.smoothScroll" = true;
              "extensions.activeThemeID" = "firefox-compact-dark@mozilla.org";
              "layout.css.prefers-color-scheme.content-override" = 0;
              "browser.compactmode.show" = true;
              "browser.tabs.firefox-view" = false;
              "browser.bookmarks.addedImportButton" = false;
              "extensions.pocket.enabled" = false;
              "browser.fullscreen.autohide" = false;
            };
            extraConfig = ''
              user_pref("toolkit.legacyUserProfileCustomizations.stylesheets", true);
              user_pref("full-screen-api.ignore-widgets", true);
              user_pref("media.ffmpeg.vaapi.enabled", true);
              user_pref("media.rdd-vpx.enabled", true);
            '';

            extensions.packages = with pkgs.nur.repos.rycee.firefox-addons; [
              ublock-origin
              facebook-container
              metamask
              darkreader
              bitwarden
              wappalyzer
              clearurls
            ];
          };
        };
      };
    };
}