{config, lib, pkgs, inputs, os, ...} : lib.mkMerge [
  
  (lib.mkIf (os == "linux") {
    home.file.".librewolf/default/chrome/theme".source = 
      inputs.firefox-gnome-theme;
  })

  (lib.mkIf (os == "darwin") {
    home.file."/Users/stephans/Library/Application Support/Firefox/Profiles/default/chrome/theme".source = 
      inputs.firefox-macos-theme;
  })

  (let configedFirefox = lib.mkMerge [
      (lib.mkIf (os == "darwin") {
        package = null;
      })
      {
        enable = true;
        profiles.default = {
          isDefault = true;
          userChrome = if (os == "linux") then ''
              @import "theme/userChrome.css";
          '' else ''
              @import "theme/chrome/userChrome.css";
              @import "theme/custom/singletabhidden.css";
          '';
          userContent = if (os == "linux") then ''
              @import "theme/userContent.css";
          '' else ''
              @import "theme/chrome/userContent.css";
          '';
          settings = {
            "toolkit.legacyUserProfileCustomizations.stylesheets" = true; # Enable customChrome.cs
            "browser.uidensity" = 0; # Set UI density to normal
            "svg.context-properties.content.enabled" = true; # Enable SVG context-propertes
            "browser.theme.dark-private-windows" = false; # Disable private window dark theme
            "extensions.autoDisableScopes" = 0; # Auto enable new extentions
            "browser.toolbars.bookmarks.visibility" = "never";
            "gnomeTheme.hideSingleTab" = true;
            "signon.rememberSignons" = false;
            "dom.private-attribution.submission.enabled" = false;
            "app.update.auto" = false;
            "browser.uiCustomization.state" = ''{"placements":{"widget-overflow-fixed-list":[],"unified-extensions-area":["_testpilot-containers-browser-action","ublock0_raymondhill_net-browser-action","sponsorblocker_ajay_app-browser-action","1b2383b324c8520974ee097e46301d5ca4e076de387c02886f1c6b1503671586_pokeinthe_io-browser-action","gdpr_cavi_au_dk-browser-action","wayback_machine_mozilla_org-browser-action","_cca112bb-1ca6-4593-a2f1-38d808a19dda_-browser-action","jid1-tsgsxbhncspbwq_jetpack-browser-action","firefox_tampermonkey_net-browser-action","_b7f9d2cd-d772-4302-8c3f-eb941af36f76_-browser-action"],"nav-bar":["back-button","forward-button","stop-reload-button","new-tab-button","customizableui-special-spring1","urlbar-container","customizableui-special-spring2","save-to-pocket-button","downloads-button","fxa-toolbar-menu-button","unified-extensions-button","_446900e4-71c2-419f-a6a7-df9c091e268b_-browser-action"],"toolbar-menubar":["menubar-items"],"TabsToolbar":["tabbrowser-tabs","alltabs-button"],"vertical-tabs":[],"PersonalToolbar":["import-button","personal-bookmarks"]},"seen":["1b2383b324c8520974ee097e46301d5ca4e076de387c02886f1c6b1503671586_pokeinthe_io-browser-action","gdpr_cavi_au_dk-browser-action","wayback_machine_mozilla_org-browser-action","_cca112bb-1ca6-4593-a2f1-38d808a19dda_-browser-action","_testpilot-containers-browser-action","jid1-tsgsxbhncspbwq_jetpack-browser-action","firefox_tampermonkey_net-browser-action","ublock0_raymondhill_net-browser-action","sponsorblocker_ajay_app-browser-action","_b7f9d2cd-d772-4302-8c3f-eb941af36f76_-browser-action","_446900e4-71c2-419f-a6a7-df9c091e268b_-browser-action","developer-button"],"dirtyAreaCache":["unified-extensions-area","nav-bar","vertical-tabs","PersonalToolbar","toolbar-menubar","TabsToolbar"],"currentVersion":20,"newElementCount":3}'';
          };
          extensions = with pkgs.nur.repos.rycee.firefox-addons; [ 
            ublock-origin 
            bitwarden 
            consent-o-matic
            sponsorblock
            multi-account-containers
            privacy-redirect
          ] ++ (if (os == "darwin") then [
            onepassword-password-manager
          ] else [
            wayback-machine 
            h264ify 
            fediact 
            tampermonkey
            laboratory-by-mozilla
          ]);
          search = {
            default = "DuckDuckGo";
            force = true;
          };
          containers = {
            "Personal" = {
              color = "green";
              icon = "circle";
              id = 3;
            };
            "ON2IT" = {
              color = "orange";
              icon = "circle";
              id = 1;
            };
            "Lekker van Peet" = {
              color = "blue";
              icon = "circle";
              id = 2;
            };
            "Radboud Universiteit" = {
              color = "red";
              icon = "circle";
              id = 4;
            };
            "Utrecht University" = {
              color = "yellow";
              icon = "circle";
              id = 5;
            };
          };
          containersForce = true;
        };
      }
    ];
  in lib.mkMerge [
      (lib.mkIf (os == "linux") {
        programs.librewolf = configedFirefox;
      })

      (lib.mkIf (os == "darwin") {
        programs.firefox = configedFirefox;
      })
  ])
]