{ pkgs, libs, ... }:
{
  programs = {
    firefox = {
      enable = true;
      profiles.default = {
        settings = {
          "browser.startup.homepage" = "about:home";
          
          "devtools.chrome.enabled" = true;
          "devtools.debugger.remote-enabled" = true;
          "toolkit.legacyUserProfileCustomizations.stylesheets" = true;

          "full-screen-api.warning.timeout" = 0;
        };

        search = {
          default = "google";
          engines = {
            youtube = {
              name = "YouTube";
              definedAliases = [
                "@yt"
                "@youtube"
              ];
              icon = "https://www.youtube.com/s/desktop/83c08b77/img/favicon.ico";
              urls = [
                {
                  template = "https://www.youtube.com/results";
                  params = [
                    {
                      name = "search_query";
                      value = "{searchTerms}";
                    }
                  ];
                }
              ];
            };

            google = {
              name = "Google";
              definedAliases = [
                "@g"
                "@google"
              ];
              icon = "https://www.gstatic.com/images/branding/searchlogo/ico/favicon.ico";
              urls = [
                {
                  template = "https://www.google.com/search";
                  params = [
                    {
                      name = "q";
                      value = "{searchTerms}";
                    }
                  ];
                }
                {
                  template = "https://www.google.com/search";
                  params = [
                    {
                      name = "udm";
                      value = "2";
                    }
                    {
                      name = "q";
                      value = "{searchTerms}";
                    }
                  ];
                }
              ];
            };

            github = {
              name = "Github";
              definedAliases = [
                "@gh"
                "@github"
              ];
              icon = "https://github.githubassets.com/favicons/favicon-dark.svg";
              urls = [
                {
                  template = "https://github.com/search";
                  params = [
                    {
                      name = "type";
                      value = "repositories";
                    }
                    {
                      name = "q";
                      value = "{searchTerms}";
                    }
                  ];
                }
              ];
            };

            reddit = {
              name = "Reddit";
              definedAliases = [
                "@rd"
                "@reddit"
              ];
              icon = "https://www.redditstatic.com/shreddit/assets/favicon/192x192.png";
              urls = [
                {
                  template = "https://www.reddit.com/search";
                  params = [
                    {
                      name = "q";
                      value = "{searchTerms}";
                    }
                  ];
                }
              ];
            };

            nix-packages = {
              name = "Nix Packages";
              definedAliases = [
                "@np"
                "@nixpkgs"
              ];
              icon = "${pkgs.nixos-icons}/share/icons/hicolor/scalable/apps/nix-snowflake.svg";
              urls = [
                {
                  template = "https://search.nixos.org/packages";
                  params = [
                    {
                      name = "type";
                      value = "packages";
                    }
                    {
                      name = "query";
                      value = "{searchTerms}";
                    }
                  ];
                }
              ];
            };

            mynixos = {
              name = "My NixOS";
              definedAliases = [ "@mynixos" ];
              icon = "https://mynixos.com/favicon.ico";
              urls = [
                {
                  template = "https://mynixos.com/search";
                  params = [
                    {
                      name = "q";
                      value = "{searchTerms}";
                    }
                  ];
                }
              ];
            };

            bing.metaData.hidden = true;
            ddg.metaData.hidden = true;
            perplexity.metaData.hidden = true;
            wikipedia.metaData.hidden = true;
          };
        };

        userChrome = builtins.readFile (libs.root "/assets/firefox/userChrome.css");
        userContent = builtins.readFile (libs.root "/assets/firefox/userContent.css");
      };
    };

    chromium.enable = false;
  };
}