{
  config,
  pkgs,
  ...
}: {
  programs.firefox = {
    enable = true;
    policies = {
      DisableTelemetry = true;
      DisableFirefoxStudies = true;
      DisablePocket = true;
      DisableAccounts = true;
      DisableFirefoxScreenshots = true;
      DisplayBookmarksToolbar = "never";
      PasswordManagerEnabled = false;

      ExtensionSettings = {
        "*".installation_mode = "blocked";
        # uBlock Origin:
        "uBlock0@raymondhill.net" = {
          install_url = "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi";
          installation_mode = "force_installed";
        };
        # Dark Reader
        "addon@darkreader.org" = {
          install_url = "https://addons.mozilla.org/firefox/downloads/latest/darkreader/latest.xpi";
          installation_mode = "force_installed";
        };
        # Advent of Code delta-rank
        "{78b07db2-25ed-4088-9c92-5c5dcfca3c3c}" = {
          install_url = "https://addons.mozilla.org/firefox/downloads/latest/advent-of-code-delta-score/latest.xpi";
          installation_mode = "force_installed";
        };
        # SponsorBlock
        "sponsorBlocker@ajay.app" = {
          install_url = "https://addons.mozilla.org/firefox/downloads/latest/sponsorblock/latest.xpi";
          installation_mode = "force_installed";
        };
        # KeepassXC
        "keepassxc-browser@keepassxc.org" = {
          install_url = "https://addons.mozilla.org/firefox/downloads/latest/keepassxc-browser/latest.xpi";
          installation_mode = "force_installed";
        };
        # Cookie Blocker
        "idcac-pub@guus.ninja" = {
          install_url = "https://addons.mozilla.org/firefox/downloads/latest/istilldontcareaboutcookies/latest.xpi";
          installation_mode = "force_installed";
        };
        # Ghostery
        "firefox@ghostery.com" = {
          install_url = "https://addons.mozilla.org/firefox/downloads/latest/ghostery/latest.xpi";
          installation_mode = "force_installed";
        };
      };

      Preferences = {
        general = {
          autoScroll = true;
        };
        "browser.newtabpage.activity-stream.showSponsored" = lock-false;
        "browser.newtabpage.activity-stream.system.showSponsored" = lock-false;
        "browser.newtabpage.activity-stream.showSponsoredTopSites" = lock-false;
      };
    };
  };
}