{ inputs, lib, ... }: {
  den.aspects.librewolf = {
    homeManager = { pkgs, ... }: {
      programs.librewolf = {
        enable = true;

        settings = {
          "browser.startup.homepage" = "https://search.bug.tools";
          "browser.startup.page" = 3;

          "datareporting.healthreport.uploadEnabled" = false;
          "datareporting.policy.dataSubmissionEnabled" = false;
          "toolkit.telemetry.enabled" = false;
          "toolkit.telemetry.unified" = false;
          "toolkit.telemetry.archive.enabled" = false;
          "toolkit.telemetry.newProfilePing.enabled" = false;
          "toolkit.telemetry.shutdownPingSender.enabled" = false;
          "toolkit.telemetry.updatePing.enabled" = false;
          "toolkit.telemetry.bhrPing.enabled" = false;
          "toolkit.telemetry.firstShutdownPing.enabled" = false;
          "toolkit.telemetry.coverage.opt-out" = true;
          "toolkit.coverage.opt-out" = true;
          "app.shield.optoutstudies.enabled" = false;
          "app.normandy.enabled" = false;
          "app.normandy.api_url" = "";
          "breakpad.reportURL" = "";
          "browser.tabs.crashReporting.sendReport" = false;
          "browser.crashReports.unsubmittedCheck.enabled" = false;
          "browser.crashReports.unsubmittedCheck.autoSubmit2" = false;

          "privacy.resistFingerprinting.letterboxing" = true;
          "privacy.donottrackheader.enabled" = true;
          "privacy.globalprivacycontrol.enabled" = true;
          "privacy.resistFingerprinting" = false;
          "privacy.fingerprintingProtection" = true;
          "privacy.fingerprintingProtection.overrides" = "+AllTargets,-CSSPrefersColorScheme";

          "browser.search.separatePrivateDefault" = false;

          "browser.download.autohideButton" = true;
          "browser.quitShortcut.disabled" = true;
          "browser.sessionstore.resume_session_once" = true;

          "browser.cache.memory.capacity" = 65536;
          "browser.sessionstore.interval" = 60000;
          "browser.sessionstore.max_tabs_undo" = 10;
          "browser.sessionstore.max_windows_undo" = 1;
          "browser.tabs.unloadOnLowMemory" = true;

          "gfx.webrender.all" = true;
          "gfx.canvas.accelerated" = true;
          "media.hardware-video-decoding.force-enabled" = true;

          "network.http.max-connections" = 1500;
          "network.http.max-persistent-connections-per-server" = 10;
          "network.prefetch-next" = false;

          "browser.tabs.animate" = false;
          "browser.fullscreen.animate" = false;

          "ui.systemUsesDarkTheme" = 1;
          "browser.theme.content-theme" = 0;

          "layout.css.prefers-color-scheme.content-override" = 0;
        };

        profiles.default = {
          search = {
            force = true;

            default = "search.bug.tools";

            engines = {
              "search.bug.tools" = {
                urls = [
                  {
                    template = "https://search.bug.tools/search";
                    params = [
                      { name = "q"; value = "{searchTerms}"; }
                    ];
                  }
                ];

                icon = "https://search.bug.tools/favicon.ico";
                definedAliases = [ "@s" "@sq" ];
              };

              "NixOS Packages" = {
                urls = [
                  {
                    template = "https://search.nixos.org/packages";
                    params = [
                      { name = "channel"; value = "unstable"; }
                      { name = "query"; value = "{searchTerms}"; }
                    ];
                  }
                ];
                icon = "https://search.nixos.org/favicon.png";
                definedAliases = [ "@np" ];
              };

              "NixOS Options" = {
                urls = [
                  {
                    template = "https://search.nixos.org/options";
                    params = [
                      { name = "channel"; value = "unstable"; }
                      { name = "query"; value = "{searchTerms}"; }
                    ];
                  }
                ];
                icon = "https://search.nixos.org/favicon.png";
                definedAliases = [ "@no" ];
              };

              "Home Manager Options" = {
                urls = [
                  {
                    template = "https://home-manager-options.extranix.com/";
                    params = [
                      { name = "query"; value = "{searchTerms}"; }
                      { name = "release"; value = "master"; }
                    ];
                  }
                ];
                icon = "https://home-manager-options.extranix.com/images/favicon.png";
                definedAliases = [ "@hm" ];
              };

              google.metaData.hidden = true;
              bing.metaData.hidden = true;
              amazondotcom-us.metaData.hidden = true;
              ebay.metaData.hidden = true;

              wikipedia.metaData = {
                hidden = false;
                alias = "@w";
              };
            };
          };

          extensions = {
            force = true;
            settings = {
              "{7a7a4a92-a2a0-41d1-9fd7-1e92480d612d}" = {
                force = true;
                settings = inputs.catppuccin-userstyles-nix.stylusSettings.${pkgs.stdenv.hostPlatform.system} {
                  global = {
                    lightFlavor = "mocha";
                    darkFlavor  = "mocha";
                    accentColor = "mauve";
                  };
                };
              };
            };
          };
        };

        policies = {
          OverrideFirstRunPage = "";
          OverridePostUpdatePage = "";

          BlockAboutConfig = true;

          DisableTelemetry = true;
          DisableFirefoxStudies = true;
          DisableFeedbackCommands = true;
          DisableCrashReporter = true;

          DisablePocket = true;

          DisableFirefoxAccounts = false;

          ExtensionSettings = let
            mkExtensions = ids: lib.genAttrs ids (id: {
              install_url = "https://addons.mozilla.org/firefox/downloads/latest/${id}/latest.xpi";
              installation_mode = "force_installed";
              private_browsing = true;
            });
          in {
            "*".installation_mode = "blocked";
          } // (mkExtensions [
            "{cb31ec5d-c49a-4e5a-b240-16c767444f62}" # indie-wiki-buddy

            "{1b66b5ad-408f-4300-aac6-55a68b2b24ff}" # catppuccin-mocha-no-borders

            "{1b66b5ad-408f-4300-aac6-55a68b2b24ff}" # catppuccin-mocha-no-borders

            "{7a7a4a92-a2a0-41d1-9fd7-1e92480d612d}" # styl-us

            "{60f82f00-9ad5-4de5-b31c-b16a47c51558}" # cookie-quick-manager

            "{88ebde3a-4581-4c6b-8019-2a05a9e3e938}" # hide-youtube-shorts

            "firefox@tampermonkey.net" # tampermonkey

            "deArrow@ajay.app" # dearrow

            "sponsorBlocker@ajay.app" # sponsorblock

            "uBlock0@raymondhill.net" # ublock-origin

            "contact@lesspass.com" # lesspass

            "{a6c4a591-f1b2-4f03-b3ff-767e5bedf4e7}" # user-agent-string-switcher

            "{762f9885-5a13-4abd-9c77-433dcd38b8fd}" # return-youtube-dislikes
          ]);
        };
      };
    };
  };
}