{ pkgs, lib, inputs, config, ... }:

let
  addons = inputs.firefox-addons.packages.${pkgs.system};
  cfg = config.programs.desktop.browser.firefox;
in
{

  config = {
    nixpkgs.config.allowUnfree = true;
    home.sessionVariables = lib.mkIf cfg.default {
      BROWSER = "firefox";
    };
  
    programs.firefox = lib.mkIf cfg.enable {
      enable = true;
      profiles.ooks = {
        bookmarks = { };
        extensions = with addons; [
          ublock-origin
          browserpass
          stylus
          surfingkeys
        ];
        settings = {
        
          #Basic Settings
          "browser.disableResetPrompt" = true;
          "toolkit.legacyUserProfileCustomizations.stylesheets" = true;
          "browser.cache.disk.enable" = false;
          "browser.cache.memory.enable" = true;
          "browser.cache.memory.capacity" = 524288;
          "browser.sessionstore.interval" = 15000000;
          "extensions.pocket.enabled" = false;
          "reader.parse-on-load.enabled" = false;
          "accessibility.force_disabled" = 1;
          "browser.helperApps.deleteTempFileOnExit" = true;
          "browser.uitour.enabled" = false;
        
          #Startup
          "browser.newtabpage.activity-stream.showSponsored" = false;
          "browser.newtabpage.activity-stream.showSponsoredTopSites" = false;
          "browser.newtabpage.activity-stream.default.sites" = "";
          "browser.aboutConfig.showWarning" = false;
        
          #Disable recommendations
          "extensions.getAddons.showPane" = false;
          "extensions.htmlaboutaddons.recommendations.enabled" = false;
          "browser.discovery.enabled" = false;
        
          #Telemetry
          "datareporting.policy.dataSubmissionEnabled" = false;
          "datareporting.healthreport.uploadEnabled" = false;
          "toolkit.telemetry.unified" = false;
          "toolkit.telemetry.enabled" = false;
          "toolkit.telemetry.server" = "data:,";
          "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;
          "toolkit.coverage.endpoint.base" = "";
          "browser.ping-centre.telemetry" = false;
          "browser.newtabpage.activity-stream.feeds.telemetry" = false;
          "browser.newtabpage.activity-stream.telemetry" = false;
          "toolkit.telemetry.reportingpolicy.firstRun" = false;
          "toolkit.telemetry.shutdownPingSender.enabledFirstsession" = false;
          "browser.vpn_promo.enabled" = false;
          "app.shield.optoutstudies.enabled" = false;
          "app.normandy.enabled" = false;
          "app.normandy.api_url" = "";
        
          #Crash Reports
          "breakpad.reportURL" = "";
          "browser.tabs.crashReporting.sendReport" = false;
          "browser.crashReports.unsubmittedCheck.autoSubmit2" = false;
        
          #Other
          "captivedetect.canonicalURL" = "";
          "network.captive-portal-service.enabled" = false;
          "network.connectivity-service.enabled" = false;
        
          #Geolocation
          "geo.provider.network.url" = "https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%";
          "geo.provider.use_gpsd" = false;
          "geo.provider.use_geoclue" = false;
        
          #Calculator
          "browser.urlbar.suggest.calculator" = true;
        };

        userChrome =
          ''
          /* config */

          * {
            --animation-speed: 0.2s;
            --button-corner-rounding: 30px;
            --urlbar-container-height: 40px !important;
            --urlbar-min-height: 30px !important;
            --urlbar-height: 30px !important;
            --urlbar-toolbar-height: 38px !important;
            --moz-hidden-unscrollable: scroll !important;
            --toolbarbutton-border-radius: 3px !important;
            --tabs-border-color: transparent;
          }

          :root {
              --window: -moz-Dialog !important;
              --secondary: color-mix(in srgb, currentColor 5%, -moz-Dialog) !important;
              --uc-border-radius: 0px;
              --uc-status-panel-spacing: 0px;
              --uc-page-action-margin: 7px;
          }

          /* animation and effect */
          #nav-bar:not([customizing]) {
            visibility: visible;
            margin-top: -40px;
            transition-delay: 0.1s;
            filter: alpha(opacity=0);
            opacity: 0;
            transition: visibility, ease 0.1s, margin-top, ease 0.1s, opacity, ease 0.1s,
            rotate, ease 0.1s !important;
          }

          #nav-bar:hover,
          #nav-bar:focus-within,
          #urlbar[focused='true'],
          #identity-box[open='true'],
          #titlebar:hover + #nav-bar:not([customizing]),
          #toolbar-menubar:not([inactive='true']) ~ #nav-bar:not([customizing]) {
            visibility: visible;

            margin-top: 0px;
            filter: alpha(opacity=100);
            opacity: 100;
            margin-bottom: -0.2px;
          }
          #PersonalToolbar {
            margin-top: 0px;
          }
          #nav-bar .toolbarbutton-1[open='true'] {
            visibility: visible;
            opacity: 100;
          }

          tab:not(:active) .tab-background {
            transition: background-color var(--animation-speed) !important;
          }
          :root:not([customizing]) :hover > .tabbrowser-tab:not(:hover) {
            transition: blur, ease 0.1s !important;
          }

          :root:not([customizing]) :not(:hover) > .tabbrowser-tab {
            transition: blur, ease 0.1s !important;
          }

          #tabbrowser-tabs .tab-label-container[customizing] {
            color: transparent;
            transition: ease 0.1s;
            transition-delay: 0.2s;
          }

          .tabbrowser-tab:not([pinned]) .tab-icon-image ,.bookmark-item .toolbarbutton-icon{opacity: 0!important; transition: .15s !important; width: 0!important; padding-left: 16px!important}
          .tabbrowser-tab:not([pinned]):hover .tab-icon-image,.bookmark-item:hover .toolbarbutton-icon{opacity: 100!important; transition: .15s !important; display: inline-block!important; width: 16px!important; padding-left: 0!important}
          .tabbrowser-tab:not([hover]) .tab-icon-image,.bookmark-item:not([hover]) .toolbarbutton-icon{padding-left: 0!important}

          /*  Removes annoying buttons and spaces */
          #firefox-view-button, .titlebar-spacer[type="pre-tabs"], .titlebar-spacer[type="post-tabs"]{display: none !important}
          #tabbrowser-tabs{border-inline-start-width: 0!important}

          /*  Makes some buttons nicer  */
          #PanelUI-menu-button, #unified-extensions-button, #reload-button, #stop-button {padding: 2px !important}
          #reload-button, #stop-button{margin: 1px !important;}

          /* Tabs colors  */
          #tabbrowser-tabs:not([movingtab])
            > #tabbrowser-arrowscrollbox
            > .tabbrowser-tab
            > .tab-stack
            > .tab-background[multiselected='true'],
          #tabbrowser-tabs:not([movingtab])
            > #tabbrowser-arrowscrollbox
            > .tabbrowser-tab
            > .tab-stack
            > .tab-background[selected='true'] {
            background-image: none !important;
            background-color: var(--toolbar-bgcolor) !important;
          }

          /* Inactive tabs color */
          #navigator-toolbox {
            background-color: var(--window) !important;
          }

          /* X-button */
          :root {
              --show-tab-close-button: none;
              --show-tab-close-button-hover: -moz-inline-block;
          }
          .tabbrowser-tab:not([pinned]) .tab-close-button { display: var(--show-tab-close-button) !important; }
          .tabbrowser-tab:not([pinned]):hover .tab-close-button { display: var(--show-tab-close-button-hover) !important }

          /* Window colors  */

          :root {
            --lwt-sidebar-background-color: var(--window) !important;
            --lwt-toolbar-field-focus: var(--secondary) !important;
          }

          /* tabbar */

          /* Hide the secondary Tab Label
           * e.g. playing indicator (the text, not the icon) */
          .tab-secondary-label { display: none !important; }

          #nav-bar:not([tabs-hidden='true']) {
            box-shadow: none;
          }

          :root {
            --toolbarbutton-border-radius: 0 !important;
            --tab-border-radius: 0 !important;
            --tab-block-margin: 0 !important;
          }

          .tab-background {
            border-right: 0px solid rgba(0, 0, 0, 0) !important;
            margin-left: -4px !important;
          }

          .tabbrowser-tab:is([visuallyselected='true'], [multiselected])
            > .tab-stack
            > .tab-background {
            box-shadow: none !important;
          }

          .tabbrowser-tab[last-visible-tab='true'] {
            padding-inline-end: 0 !important;
          }

          #tabs-newtab-button {
            padding-left: 0 !important;
          }

          /* remove tab shadow */
          .tabbrowser-tab
            >.tab-stack
            > .tab-background { box-shadow: none !important;  }

          /* multi tab selection */
          #tabbrowser-tabs:not([noshadowfortests]) .tabbrowser-tab:is([multiselected])
            > .tab-stack
            > .tab-background:-moz-lwtheme { outline-color: var(--toolbarseparator-color) !important; }

          /* Hides the list-all-tabs button*/
          #alltabs-button { display: var(--uc-show-all-tabs-button) !important; }

          /* remove gap after pinned tabs */
          #tabbrowser-tabs[haspinnedtabs]:not([positionpinnedtabs])
            > #tabbrowser-arrowscrollbox
            > .tabbrowser-tab:nth-child(1 of :not([pinned], [hidden])) { margin-inline-start: 0 !important; }

          /*  Removes annoying border  */
          #navigator-toolbox{border:none !important;}

          /*  Removes the annoying rainbow thing from the hamburger  */
          #appMenu-fxa-separator{border-image:none !important;}
          '';
        userContent = ''
          @-moz-document url-prefix(about:){

          /*  Removes the scrollbar on some places  */
          body,html{overflow-y: auto}

          /*  Devtools  */
          @-moz-document url-prefix(about:devtools){
          #toolbox-container{margin-top: 10px !important}
          .devtools-tabbar{background: transparent !important}
          .devtools-tab-line{border-radius: 0 0 5px 5px}
          .customize-animate-enter-done,.customize-menu,.top-site-outer:hover,button{background-color: transparent!important}}

          /*  Newtab  */
          @-moz-document url("about:home"), url("about:newtab"){
          .search-wrapper .search-handoff-button .fake-caret {top: 13px !important; inset-inline-start: 48px !important}
          .search-wrapper .logo-and-wordmark{opacity: 0.9 !important; order: 1 !important; margin-bottom: 0 !important; flex: 1 !important; flex-basis: 20% !important}
          .search-wrapper .search-handoff-button .fake-caret{top: 13px !important; inset-inline-start: 48px !important}
          .search-wrapper .logo-and-wordmark{opacity: 0.9 !important; order: 1 !important; margin-bottom: 0 !important; flex: 1 !important; flex-basis: 20% !important}
          .outer-wrapper .search-wrapper{padding: 0px !important; display: flex !important; flex-direction: row !important; flex-wrap: wrap !important; justify-content: center !important; align-items: center !important; align-content: space-around !important; gap: 20px 10px !important}
          .search-wrapper .logo-and-wordmark .logo{background-size: 60px !important; height: 60px !important; width: 60px !important}
          .search-wrapper .search-inner-wrapper{min-height: 42px !important; order: 2 !important; flex: 3 !important; flex-basis: 60% !important; top: 4px !important}
          .search-wrapper .search-inner-wrapper{min-height: 42px !important; order: 2 !important; flex: 3 !important; flex-basis: 60% !important; top: 4px !important}
          .outer-wrapper.ds-outer-wrapper-breakpoint-override.only-search.visible-logo{display: flex !important; padding-top: 0px !important;vertical-align: middle}
          .customize-menu{border-radius: 10px 0 0 10px !important}
          #root > div{align-items: center; display: flex}}}
        '';
      };
    };
  };
}