{ pkgs, lib, config, ... }:
{
  programs.firefox = {
    enable = true;
    profiles = {
      default = {
        extensions = with pkgs.nur.repos.rycee.firefox-addons; [
          pkgs.nur.repos.rycee.firefox-addons."1password-x-password-manager"
          consent-o-matic
          refined-github
          sponsorblock
          ublock-origin
        ];
        settings = {
          ## nix handle updates
          "app.update.auto" = false;
          "browser.bookmarks.showMobileBookmarks" = false;
          "browser.compactmode.show" = true;
          "browser.contentblocking.category" = "strict";
          "browser.search.countryCode" = "US";
          "browser.search.defaultenginename" = "DuckDuckGo";
          "browser.search.isUS" = true;
          "browser.search.region" = "US";
          "browser.search.selectedEngine" = "DuckDuckGo";
          ## don't check if it's the default browser
          "browser.shell.checkDefaultBrowser" = false;
          "browser.startup.homepage" = "https://duckduckgo.com";
          "browser.urlbar.placeholderName" = "DuckDuckGo";
          ## keep this with ff 96
          "media.ffmpeg.vaapi.enabled" = true;
          ## remove on ff 96
          "media.ffvpx.enabled" = false;
          ## remove on ff 96
          "media.navigator.mediadatadecoder_vpx_enabled" = true;
          "media.peerconnection.enabled" = true;
          ## keep this with ff 96
          "media.rdd-ffmpeg.enabled" = true;
          ## remove on ff 96
          "media.rdd-vpx.enabled" = false;
          ## Block third-party cookies
          "network.cookie.cookieBehavior" = 1;
          "privacy.donottrackheader.enabled" = true;
          "privacy.trackingprotection.enabled" = true;
          "privacy.trackingprotection.socialtracking.enabled" = true;

          "font.name.monospace.x-western" = "Source Code Pro";
          "font.name.sans-serif.x-western" = "DejaVu Sans";
          "font.name.serif.x-western" = "DejaVu Serif";
        };

        userChrome = ''
          #TabsToolbar {
          visibility: collapse;
          }
        '';
      };
    };
  };
}