diff --git a/homes/czichy@desktop/default.nix b/homes/czichy@desktop/default.nix
index 5c37362..9b9c607 100755
--- a/homes/czichy@desktop/default.nix
+++ b/homes/czichy@desktop/default.nix
@@ -12,6 +12,8 @@ in {
     services.keepassxc.enable = true;
     programs = {
       bitwarden.enable = true;
+      browsers.vivaldi.enable = true;
+      browsers.zen.enable = true;
       ssh = {
         enable = true;
         sshKey.enable = false;
diff --git a/modules/home-manager/default.nix b/modules/home-manager/default.nix
index baec635..a961ae7 100755
--- a/modules/home-manager/default.nix
+++ b/modules/home-manager/default.nix
@@ -34,6 +34,8 @@ in {
     # -- programs --
     programs_bitwarden = importApply ./programs/bitwarden.nix {inherit localFlake;};
     programs_browsers_firefox = importApply ./programs/browsers/firefox {inherit localFlake;};
+    programs_browsers_vivaldi = importApply ./programs/browsers/vivaldi.nix {inherit localFlake;};
+    programs_browsers_zen = importApply ./programs/browsers/zen.nix {inherit localFlake;};
     programs_btop = importApply ./programs/btop.nix {inherit localFlake;};
     programs_tmux = importApply ./programs/tmux.nix {inherit localFlake;};
     programs_zellij = importApply ./programs/zellij.nix {inherit localFlake;};
diff --git a/modules/home-manager/programs/browsers/firefox/bookmarks.nix b/modules/home-manager/programs/browsers/firefox/bookmarks.nix
index 92d1ca2..c225267 100755
--- a/modules/home-manager/programs/browsers/firefox/bookmarks.nix
+++ b/modules/home-manager/programs/browsers/firefox/bookmarks.nix
@@ -1,17 +1,3 @@
-# --- parts/modules/home-manager/profiles/home-firefox/bookmarks.nix
-#
-# Author:  czichy <christian@czichy.com>
-# URL:     https://github.com/czichy/tensorfiles
-# License: MIT
-#
-# 888                                                .d888 d8b 888
-# 888                                               d88P"  Y8P 888
-# 888                                               888        888
-# 888888 .d88b.  88888b.  .d8888b   .d88b.  888d888 888888 888 888  .d88b.  .d8888b
-# 888   d8P  Y8b 888 "88b 88K      d88""88b 888P"   888    888 888 d8P  Y8b 88K
-# 888   88888888 888  888 "Y8888b. 888  888 888     888    888 888 88888888 "Y8888b.
-# Y88b. Y8b.     888  888      X88 Y88..88P 888     888    888 888 Y8b.          X88
-#  "Y888 "Y8888  888  888  88888P'  "Y88P"  888     888    888 888  "Y8888   88888P'
 [
   {
     toolbar = true;
diff --git a/modules/home-manager/programs/browsers/vivaldi.nix b/modules/home-manager/programs/browsers/vivaldi.nix
new file mode 100755
index 0000000..8baa739
--- /dev/null
+++ b/modules/home-manager/programs/browsers/vivaldi.nix
@@ -0,0 +1,74 @@
+{localFlake}: {
+  config,
+  lib,
+  pkgs,
+  inputs,
+  ...
+}:
+with builtins;
+with lib; let
+  inherit
+    (localFlake.lib)
+    mkOverrideAtHmModuleLevel
+    isModuleLoadedAndEnabled
+    mkImpermanenceEnableOption
+    ;
+
+  cfg = config.tensorfiles.hm.programs.browsers.vivaldi;
+  _ = mkOverrideAtHmModuleLevel;
+
+  impermanenceCheck =
+    (isModuleLoadedAndEnabled config "tensorfiles.hm.system.impermanence") && cfg.impermanence.enable;
+  impermanence =
+    if impermanenceCheck
+    then config.tensorfiles.hm.system.impermanence
+    else {};
+in {
+  options.tensorfiles.hm.programs.browsers.vivaldi = with types; {
+    enable = mkEnableOption ''
+      TODO
+    '';
+
+    impermanence = {
+      enable = mkImpermanenceEnableOption;
+    };
+  };
+
+  config = mkIf cfg.enable (mkMerge [
+    # |----------------------------------------------------------------------| #
+    {
+      programs.vivaldi = {
+        enable = _ true;
+        commandLineArgs = [
+          "--disable-gpu-driver-bug-workarounds"
+          "--enable-features=WaylandWindowDecorations"
+          "--enable-gpu-rasterization"
+          "--enable-zero-copy"
+          "--ignore-gpu-blocklist"
+          "--ozone-platform=wayland"
+          "--ozone-platform-hint=auto"
+          "--enable-features=WaylandWindowDecorations,CanvasOopRasterization,Vulkan,UseSkiaRenderer"
+        ];
+        extensions = [
+          {id = "oboonakemofpalcgghocfoadofidjkkk";}
+          {id = "clngdbkpkpeebahjckkjfobafhncgmne";}
+        ];
+      };
+    }
+    # |----------------------------------------------------------------------| #
+    (mkIf impermanenceCheck {
+      home.persistence."${impermanence.persistentRoot}${config.home.homeDirectory}" = {
+        directories = [
+          ".config/vivaldi"
+          ".local/lib/vivaldi"
+        ];
+        files = [
+          ".local/share/.vivaldi_reporting_data"
+        ];
+      };
+    })
+    # |----------------------------------------------------------------------| #
+  ]);
+
+  meta.maintainers = with localFlake.lib.maintainers; [czichy];
+}
diff --git a/modules/home-manager/programs/browsers/zen/default.nix b/modules/home-manager/programs/browsers/zen/default.nix
new file mode 100755
index 0000000..eda4802
--- /dev/null
+++ b/modules/home-manager/programs/browsers/zen/default.nix
@@ -0,0 +1,470 @@
+{localFlake}: {
+  config,
+  lib,
+  pkgs,
+  inputs,
+  ...
+}:
+with builtins;
+with lib; let
+  inherit
+    (localFlake.lib)
+    mkOverrideAtHmModuleLevel
+    isModuleLoadedAndEnabled
+    mkImpermanenceEnableOption
+    ;
+
+  cfg = config.tensorfiles.hm.programs.browsers.zen;
+  _ = mkOverrideAtHmModuleLevel;
+
+  plasmaCheck = isModuleLoadedAndEnabled config "tensorfiles.hm.profiles.graphical-plasma";
+
+  impermanenceCheck =
+    (isModuleLoadedAndEnabled config "tensorfiles.hm.system.impermanence") && cfg.impermanence.enable;
+  impermanence =
+    if impermanenceCheck
+    then config.tensorfiles.hm.system.impermanence
+    else {};
+  pathToRelative = strings.removePrefix "${config.home.homeDirectory}/";
+in {
+  options.tensorfiles.hm.programs.browsers.zen = with types; {
+    enable = mkEnableOption ''
+      TODO
+    '';
+
+    impermanence = {
+      enable = mkImpermanenceEnableOption;
+    };
+  };
+
+  config = mkIf cfg.enable (mkMerge [
+    # |----------------------------------------------------------------------| #
+    {
+      programs.zen-browser = {
+        enable = _ true;
+        policies = {
+          DisableTelemetry = true;
+          DisableFirefoxStudies = true;
+          EnableTrackingProtection = {
+            Value = true;
+            Locked = true;
+            Cryptomining = true;
+            Fingerprinting = true;
+          };
+          DisablePocket = true;
+          DisableFirefoxAccounts = true;
+          DisableAccounts = true;
+          DisableFirefoxScreenshots = true;
+          OverrideFirstRunPage = "";
+          OverridePostUpdatePage = "";
+          DontCheckDefaultBrowser = true;
+          DisplayBookmarksToolbar = "never";
+          DisplayMenuBar = "default-off";
+          SearchBar = "unified";
+          DefaultDownloadDirectory = "~/tmp";
+
+          Preferences = {
+            "browser.contentblocking.category" = "strict";
+            "browser.disableResetPrompt" = true;
+            "browser.download.panel.shown" = true;
+            "browser.formfill.enable" = false;
+            "browser.newtabpage.activity-stream.feeds.section.topstories" = false;
+            "browser.newtabpage.activity-stream.feeds.snippets" = false;
+            "browser.newtabpage.activity-stream.feeds.telemetry" = false;
+            "browser.newtabpage.activity-stream.section.highlights.includeBookmarks" = false;
+            "browser.newtabpage.activity-stream.section.highlights.includeDownloads" = false;
+            "browser.newtabpage.activity-stream.section.highlights.includePocket" = false;
+            "browser.newtabpage.activity-stream.section.highlights.includeVisited" = false;
+            "browser.newtabpage.activity-stream.showSponsored" = false;
+            "browser.newtabpage.activity-stream.showSponsoredTopSites" = false;
+            "browser.newtabpage.activity-stream.system.showSponsored" = false;
+            "browser.newtabpage.activity-stream.telemetry" = false;
+            "browser.ping-centre.telemetry" = false;
+            "browser.search.suggest.enabled.private" = false;
+            "browser.search.suggest.enabled" = false;
+            "browser.shell.checkDefaultBrowser" = false;
+            "browser.shell.defaultBrowserCheckCount" = 1;
+            "browser.topsites.contile.enabled" = false;
+            "browser.urlbar.showSearchSuggestionsFirst" = false;
+            "browser.urlbar.suggest.searches" = false;
+            "dom.security.https_only_mode" = true;
+            "experiments.activeExperiment" = false;
+            "experiments.enabled" = false;
+            "experiments.supported" = false;
+            "extensions.InstallTrigger.enabled" = false;
+            "extensions.pocket.enabled" = false;
+            "extensions.screenshots.disabled" = true;
+            "full-screen-api.ignore-widgets" = true;
+            "general.smoothScroll" = true;
+            "identity.fxaccounts.enabled" = false;
+            "media.ffmpeg.vaapi.enabled" = true;
+            "media.rdd-vpx.enabled" = true;
+            "network.allow-experiments" = false;
+            "privacy.donottrackheader.enabled" = true;
+            "privacy.partition.network_state.ocsp_cache" = true;
+            "privacy.trackingprotection.enabled" = true;
+            "privacy.trackingprotection.socialtracking.enabled" = true;
+            "privacy.userContext.enabled" = false;
+            "signon.rememberSignons" = false;
+            "toolkit.legacyUserProfileCustomizations.stylesheets" = true;
+            "toolkit.telemetry.archive.enabled" = false;
+            "toolkit.telemetry.bhrPing.enabled" = false;
+            "toolkit.telemetry.enabled" = false;
+            "toolkit.telemetry.firstShutdownPing.enabled" = false;
+            "toolkit.telemetry.hybridContent.enabled" = false;
+            "toolkit.telemetry.newProfilePing.enabled" = false;
+            "toolkit.telemetry.reportingpolicy.firstRun" = false;
+            "toolkit.telemetry.shutdownPingSender.enabled" = false;
+            "toolkit.telemetry.unified" = false;
+            "toolkit.telemetry.updatePing.enabled" = false;
+            "widget.use-xdg-desktop-portal.file-picker" = true;
+            "widget.use-xdg-desktop-portal.location" = true;
+            "widget.use-xdg-desktop-portal.mime-handler" = true;
+            "widget.use-xdg-desktop-portal.open-uri" = true;
+            "widget.use-xdg-desktop-portal.settings" = true;
+            "browser.uiCustomization.state" = builtins.toJSON {
+              currentVersion = 20;
+              dirtyAreaCache = [
+                "unified-extensions-area"
+                "nav-bar"
+                "toolbar-menubar"
+                "TabsToolbar"
+                "PersonalToolbar"
+              ];
+              newElementCount = 4;
+              placements = {
+                PersonalToolbar = ["import-button" "personal-bookmarks"];
+                TabsToolbar = ["tabbrowser-tabs" "new-tab-button" "alltabs-button"];
+                nav-bar = [
+                  "back-button"
+                  "forward-button"
+                  "stop-reload-button"
+                  "urlbar-container"
+                  "downloads-button"
+                  "fxa-toolbar-menu-button"
+                  "reset-pbm-toolbar-button"
+                  "unified-extensions-button"
+                ];
+                toolbar-menubar = ["menubar-items"];
+                unified-extensions-area = [
+                  "addon_darkreader_org-browser-action"
+                  "_a6c4a591-f1b2-4f03-b3ff-767e5bedf4e7_-browser-action"
+                ];
+                widget-overflow-fixed-list = [];
+              };
+              seen = [
+                "addon_darkreader_org-browser-action"
+                "_a6c4a591-f1b2-4f03-b3ff-767e5bedf4e7_-browser-action"
+                "developer-button"
+              ];
+            };
+          };
+        };
+        profiles.czichy = {
+          id = 0;
+          isDefault = true;
+          bookmarks = {};
+          extensions =
+            # with addons;
+            with inputs.firefox-addons.packages.${pkgs.system};
+            # with pkgs.nur.repos.rycee.firefox-addons;
+              [
+                # Rycee NUR: https://nur.nix-community.org/repos/rycee/
+                # dracula-dark-colorscheme
+                bitwarden
+                clearurls
+                cookie-autodelete
+                firefox-translations
+                keepassxc-browser
+                multi-account-containers
+                rust-search-extension
+                ublock-origin
+                user-agent-string-switcher
+              ];
+          settings = let
+            newTab = let
+              activityStream = "browser.newtabpage.activity-stream";
+            in {
+              "${activityStream}.feeds.topsites" = true;
+              "${activityStream}.feeds.section.highlights" = true;
+              "${activityStream}.feeds.section.topstories" = false;
+              "${activityStream}.feeds.section.highlights.includePocket" = false;
+              "${activityStream}.section.highlights.includePocket" = false;
+              "${activityStream}.showSearch" = false;
+              "${activityStream}.showSponsoredTopSites" = false;
+              "${activityStream}.showSponsored" = false;
+            };
+
+            searchBar = {
+              "browser.urlbar.suggest.quicksuggest.sponsored" = false;
+              "browser.urlbar.suggest.quicksuggest.nonsponsored" = false;
+              "browser.newtabpage.activity-stream.improvesearch.topSiteSearchShorcuts" = false;
+              "browser.urlbar.showSearchSuggestionsFirst" = false;
+            };
+
+            extensions = {
+              "extensions.update.autoUpdateDefault" = false;
+              "extensions.update.enabled" = false;
+            };
+
+            telemetry = {
+              "browser.newtabpage.activity-stream.telemetry" = false;
+              "browser.newtabpage.activity-stream.feeds.telemetry" = false;
+              "browser.ping-centre.telemetry" = false;
+              "toolkit.telemetry.reportingpolicy.firstRun" = false;
+              "toolkit.telemetry.unified" = false;
+              "toolkit.telemetry.archive.enabled" = false;
+              "toolkit.telemetry.updatePing.enabled" = false;
+              "toolkit.telemetry.shutdownPingSender.enabled" = false;
+              "toolkit.telemetry.newProfilePing.enabled" = false;
+              "toolkit.telemetry.bhrPing.enabled" = false;
+              "toolkit.telemetry.firstShutdownPing.enabled" = false;
+              "datareporting.healthreport.uploadEnabled" = false;
+              "datareporting.policy.dataSubmissionEnabled" = false;
+              "security.protectionspopup.recordEventTelemetry" = false;
+              "security.identitypopup.recordEventTelemetry" = false;
+              "security.certerrors.recordEventTelemetry" = false;
+              "security.app_menu.recordEventTelemetry" = false;
+              "toolkit.telemetry.pioneer-new-studies-available" = false;
+              "app.shield.optoutstudies.enable" = false;
+            };
+
+            privacy = {
+              # clipboard events: https://superuser.com/questions/1595994/dont-let-websites-overwrite-clipboard-in-firefox-without-explicitly-giving-perm
+              # Breaks copy/paste on websites
+              #"dom.event.clipboardevents.enabled" = false;
+              "dom.battery.enabled" = false;
+              # "privacy.resistFingerprinting" = true;
+            };
+
+            https = {
+              "dom.security.https_only_mode" = false;
+              "dom.security.https_only_mode_ever_enabled" = false;
+            };
+
+            graphics = {
+              # TODO
+              #"media.ffmpeg.vaapi.enabled" = true;
+              "media.gpu-process-decoder" = true;
+              "dom.webgpu.enabled" = true;
+              "gfx.webrender.all" = true;
+              "layers.mlgpu.enabled" = true;
+              "layers.gpu-process.enabled" = true;
+            };
+
+            generalSettings = {
+              "widget.use-xdg-desktop-portal.file-picker" = 2;
+              "widget.use-xdg-desktop-portal.mime-handler" = 2;
+              "browser.aboutConfig.showWarning" = false;
+              "browser.tabs.warnOnClose" = true;
+              "browser.tabs.warnOnCloseOtherTabs" = true;
+              "browser.warnOnQuit" = true;
+              "browser.shell.checkDefaultBrowser" = false;
+              "browser.urlbar.showSearchSuggestionsFirst" = false;
+              "extensions.htmlaboutaddons.inline-options.enabled" = false;
+              "extensions.htmlaboutaddons.recommendations.enabled" = false;
+              "extensions.pocket.enabled" = false;
+              "browser.fullscreen.autohide" = false;
+              "browser.contentblocking.category" = "standard";
+              # "browser.display.use_document_fonts" = 0; Using enable-browser-fonts extension instead
+            };
+
+            toolbars = {
+              "browser.tabs.firefox-view" = false;
+              "browser.toolbars.bookmarks.visibility" = "newtab";
+            };
+
+            passwords = {
+              "signon.rememberSignons" = false;
+              "signon.autofillForms" = false;
+              "signon.generation.enabled" = false;
+              "signon.management.page.breach-alerts.enabled" = false;
+            };
+
+            downloads = {
+              "browser.download.useDownloadDir" = false;
+              "browser.download.autohideButton" = false;
+              "browser.download.always_ask_before_handling_new_types" = true;
+            };
+          in
+            generalSettings
+            // passwords
+            // extensions
+            // https
+            // newTab
+            // searchBar
+            // privacy
+            // telemetry
+            // graphics
+            // downloads
+            // toolbars;
+        };
+
+        search = {
+          force = true;
+          default = "Google";
+          engines = {
+            "Nix Packages" = {
+              urls = [
+                {
+                  template = "https://search.nixos.org/packages";
+                  params = [
+                    {
+                      name = "type";
+                      value = "packages";
+                    }
+                    {
+                      name = "channel";
+                      value = "unstable";
+                    }
+                    {
+                      name = "query";
+                      value = "{searchTerms}";
+                    }
+                  ];
+                }
+              ];
+              definedAliases = ["@np"];
+            };
+            "Nix Options" = {
+              urls = [
+                {
+                  template = "https://search.nixos.org/options";
+                  params = [
+                    {
+                      name = "type";
+                      value = "packages";
+                    }
+                    {
+                      name = "channel";
+                      value = "unstable";
+                    }
+                    {
+                      name = "query";
+                      value = "{searchTerms}";
+                    }
+                  ];
+                }
+              ];
+              definedAliases = ["@no"];
+            };
+            "Home Manager" = {
+              urls = [
+                {
+                  template = "https://home-manager-options.extranix.com/";
+                  params = [
+                    {
+                      name = "query";
+                      value = "{searchTerms}";
+                    }
+                  ];
+                }
+              ];
+              definedAliases = ["@hm"];
+            };
+            "GitHub" = {
+              urls = [
+                {
+                  template = "https://github.com/search";
+                  params = [
+                    {
+                      name = "q";
+                      value = "{searchTerms}";
+                    }
+                  ];
+                }
+              ];
+              definedAliases = ["@gh"];
+            };
+            "GitLab" = {
+              urls = [
+                {
+                  template = "https://gitlab.com/search";
+                  params = [
+                    {
+                      name = "search";
+                      value = "{searchTerms}";
+                    }
+                  ];
+                }
+              ];
+              definedAliases = ["@gl"];
+            };
+            "YouTube" = {
+              urls = [
+                {
+                  template = "https://www.youtube.com/results";
+                  params = [
+                    {
+                      name = "search_query";
+                      value = "{searchTerms}";
+                    }
+                  ];
+                }
+              ];
+              definedAliases = ["@yt"];
+            };
+            "DuckDuckGo" = {
+              urls = [
+                {
+                  template = "https://duckduckgo.com/";
+                  params = [
+                    {
+                      name = "q";
+                      value = "{searchTerms}";
+                    }
+                  ];
+                }
+              ];
+              definedAliases = ["@dg"];
+            };
+            "Google" = {
+              urls = [
+                {
+                  template = "https://www.google.com/search";
+                  params = [
+                    {
+                      name = "q";
+                      value = "{searchTerms}";
+                    }
+                  ];
+                }
+              ];
+              definedAliases = ["@g"];
+            };
+            "Wikipedia" = {
+              urls = [
+                {
+                  template = "https://en.wikipedia.org/w/index.php";
+                  params = [
+                    {
+                      name = "search";
+                      value = "{searchTerms}";
+                    }
+                  ];
+                }
+              ];
+              definedAliases = ["@w"];
+            };
+            "Wikipedia (en)".metaData.hidden = true;
+            "Amazon.com".metaData.hidden = true;
+            "Bing".metaData.hidden = true;
+            "eBay".metaData.hidden = true;
+          };
+        };
+      };
+    }
+    # |----------------------------------------------------------------------| #
+    (mkIf impermanenceCheck {
+      home.persistence."${impermanence.persistentRoot}${config.home.homeDirectory}" = {
+        directories = [
+          ".zen/czichy"
+          # (pathToRelative "${config.xdg.cacheHome}/.mozilla/firefox")
+        ];
+      };
+    })
+    # |----------------------------------------------------------------------| #
+  ]);
+
+  meta.maintainers = with localFlake.lib.maintainers; [czichy];
+}
diff --git a/modules/home-manager/programs/browsers/zen/ublock-settings.json b/modules/home-manager/programs/browsers/zen/ublock-settings.json
new file mode 100755
index 0000000..ae9e493
--- /dev/null
+++ b/modules/home-manager/programs/browsers/zen/ublock-settings.json
@@ -0,0 +1,33 @@
+{
+  "userSettings": {
+    "advancedUserEnabled": false,
+    "uiTheme": "dark"
+  },
+  "selectedFilterLists": [
+    "user-filters",
+    "ublock-filters",
+    "ublock-badware",
+    "ublock-privacy",
+    "ublock-quick-fixes",
+    "ublock-abuse",
+    "ublock-unbreak",
+    "adguard-generic",
+    "easylist",
+    "adguard-spyware-url",
+    "block-lan",
+    "easyprivacy",
+    "urlhaus-1",
+    "curben-phishing",
+    "curben-pup",
+    "adguard-annoyance",
+    "adguard-social",
+    "fanboy-thirdparty_social",
+    "fanboy-annoyance",
+    "fanboy-social",
+    "ublock-annoyances",
+    "plowe-0"
+  ],
+  "dynamicFilteringString": "behind-the-scene * * noop\nbehind-the-scene * inline-script noop\nbehind-the-scene * 1p-script noop\nbehind-the-scene * 3p-script noop\nbehind-the-scene * 3p-frame noop\nbehind-the-scene * image noop\nbehind-the-scene * 3p noop\n* * 3p-script block\n* * 3p-frame block\n* * 3p block",
+  "hostnameSwitchesString": "no-large-media: behind-the-scene false\nno-csp-reports: * true",
+  "userFilters": ""
+}