{
  lib,
  config,
  pkgs,
  ...
}: let
  inherit (lib) mkIf;
  inherit (config) conf;
in
  mkIf conf.apps.enable {
    home-manager.users.${conf.username} = {
      programs.firefox = {
        enable = true;
        profiles = {
          "default" = {
            id = 0;

            search = {
              default = "DuckDuckGoo";
              privateDefault = "DuckDuckGoo";
              engines = {
                "DuckDuckGo".metaData.hidden = true;
                "Google".metaData.hidden = true;
                "Amazon.com".metaData.hidden = true;
                "Bing".metaData.hidden = true;
                "Wikipedia (en)".metaData.hidden = true;
                "DuckDuckGoo" = {
                  urls = [
                    {
                      template = "https://duckduckgo.com/";
                      params = [
                        {
                          name = "q";
                          value = "{searchTerms}";
                        }
                      ];
                    }
                  ];
                  definedAliases = ["@ddg"];
                };
                "Googlee" = {
                  urls = [
                    {
                      template = "https://google.com/search";
                      params = [
                        {
                          name = "q";
                          value = "{searchTerms}";
                        }
                      ];
                    }
                  ];
                  definedAliases = ["@g"];
                };
                "Wikipedia" = {
                  urls = [
                    {
                      template = "https://en.wikipedia.org/wiki/Special:Search";
                      params = [
                        {
                          name = "search";
                          value = "{searchTerms}";
                        }
                      ];
                    }
                  ];
                  definedAliases = ["@wiki"];
                };
                "YouTube" = {
                  urls = [
                    {
                      template = "https://youtube.com/results";
                      params = [
                        {
                          name = "search_query";
                          value = "{searchTerms}";
                        }
                      ];
                    }
                  ];
                  definedAliases = ["@yt"];
                };
                "Nix Packages" = {
                  urls = [
                    {
                      template = "https://search.nixos.org/packages";
                      params = [
                        {
                          name = "channel";
                          value = "unstable";
                        }
                        {
                          name = "type";
                          value = "packages";
                        }
                        {
                          name = "query";
                          value = "{searchTerms}";
                        }
                      ];
                    }
                  ];
                  definedAliases = ["@np"];
                };
                "Nix Options" = {
                  urls = [
                    {
                      template = "https://search.nixos.org/options";
                      params = [
                        {
                          name = "channel";
                          value = "unstable";
                        }
                        {
                          name = "type";
                          value = "packages";
                        }
                        {
                          name = "query";
                          value = "{searchTerms}";
                        }
                      ];
                    }
                  ];
                  definedAliases = ["@no"];
                };
                "Arch Wiki" = {
                  urls = [
                    {
                      template = "https://wiki.archlinux.org/index.php";
                      params = [
                        {
                          name = "search";
                          value = "{searchTerms}";
                        }
                        {
                          name = "fulltext";
                          value = "1";
                        }
                      ];
                    }
                  ];
                  definedAliases = ["@aw"];
                };
                "Github" = {
                  urls = [
                    {
                      template = "https://github.com/search";
                      params = [
                        {
                          name = "q";
                          value = "{searchTerms}";
                        }
                        {
                          name = "type";
                          value = "repositories";
                        }
                      ];
                    }
                  ];
                  definedAliases = ["@gh"];
                };
              };
              force = true;
              order = [
                "DuckDuckGoo"
                "Googlee"
                "Wikipedia"
                "YouTube"
                "Nix Packages"
                "Nix Options"
                "Arch Wiki"
                "Github"
              ];
            };

            bookmarks = {};

            settings = {
              "browser.aboutConfig.showWarning" = false;
              "browser.bookmarks.addedImportButton" = false;
              "browser.newtabpage.enabled" = false;
              "browser.preferences.moreFromMozilla" = false;
              "browser.shell.checkDefaultBrowser" = false;
              "browser.startup.blankWindow" = true;
              "browser.startup.page" = 3;
              "browser.tabs.closeWindowWithLastTab" = false;
              "browser.toolbars.bookmarks.visibility" = "never";
              "browser.translation.enable" = false;
              "dom.security.https_only_mode" = true;
              "extensions.pocket.enabled" = false;
              "gfx.webrender.all" = true;
              "identity.fxaccounts.enabled" = false;
              "media.cache_readhead_limit" = 9999;
              "media.cache_resume_threshold" = 9999;
              "medai.ffmpeg.vaapi.enabled" = true;
              "media.videocontrols.picture-in-picture.enabled" = false;
              "signon.rememberSignons" = false;
            };

            extensions.packages = with pkgs.nur.repos.rycee.firefox-addons; [
              bitwarden
              sponsorblock
              ublock-origin
              pronoundb
              youtube-nonstop
              enhancer-for-youtube
              firefox-color
              purpleadblock
            ];
          };
        };
      };
    };
  }