{ pkgs, ... }: {
  programs.firefox = {
    package = pkgs.firefox;
    enable = true;
    extensions = with pkgs.nur.repos.rycee.firefox-addons; [
      clearurls
      consent-o-matic
      darkreader
      decentraleyes
      don-t-fuck-with-paste
      i-dont-care-about-cookies
      keepassxc-browser
      plasma-integration
      privacy-badger
      privacy-possum
      sponsorblock
      stylus
      tree-style-tab
      ublock-origin
      unpaywall
    ];
    profiles = {
      unhardened = {
        id = 1;
      };
      default = {
        userChrome = ''
          /* Hide tab bar in FF Quantum */
          @-moz-document url("chrome://browser/content/browser.xul") {
            #TabsToolbar {
              visibility: collapse !important;
              margin-bottom: 21px !important;
            }

            #sidebar-box[sidebarcommand="treestyletab_piro_sakura_ne_jp-sidebar-action"] #sidebar-header {
              visibility: collapse !important;
            }
          }
        '';
        id = 0;
      };
    };
  };
}