diff --git a/hardware/base.nix b/hardware/base.nix
index 900fff8..c0feb11 100644
--- a/hardware/base.nix
+++ b/hardware/base.nix
@@ -4,7 +4,7 @@
   imports = [ ./firmware.nix ./planck.nix ];
 
   boot.supportedFilesystems = lib.mkDefault [ "btrfs" ];
-  boot.kernelPackages = lib.mkOverride 0 pkgs.linuxPackages_latest;
+  boot.kernelPackages = lib.mkOverride 800 pkgs.linuxPackages_latest;
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
 
diff --git a/home/browsers/firefox.nix b/home/browsers/firefox.nix
index bba999a..2299649 100644
--- a/home/browsers/firefox.nix
+++ b/home/browsers/firefox.nix
@@ -8,8 +8,7 @@ let
   inherit (import ../modules/firefox/common.nix { inherit config lib pkgs; })
     mkConfig;
 
-  arkenfoxConfig =
-    builtins.readFile "${pkgs.nur.repos.slaier.arkenfox-userjs}/user.js";
+  arkenfoxConfig = builtins.readFile pkgs.nur.repos.slaier.arkenfox-userjs;
 
   # Relax some arkenfox settings, to get a less strict
   # alternative to Mullvad Browser to fallback on.
@@ -25,6 +24,12 @@ let
 
     # Disable Pocket
     "extensions.pocket.enabled" = false;
+
+    # Enable search in location bar
+    "keyword.enabled" = false;
+
+    # Enable IPv6 again
+    "network.dns.disableIPv6" = false;
   };
 
   # use extraConfig to load arkenfox user.js before settings
@@ -35,12 +40,10 @@ let
   '';
 
   commonExtensions = with firefox-addons; [
+    german-dictionary
     ublock-origin
     bitwarden
-    vimium
-    languagetool
     libredirect
-    to-deepl
     zotero-connector
   ];
 in {
diff --git a/home/browsers/firefoxAddons.nix b/home/browsers/firefoxAddons.nix
index 6130e3d..f629614 100644
--- a/home/browsers/firefoxAddons.nix
+++ b/home/browsers/firefoxAddons.nix
@@ -2,13 +2,27 @@
 
 let inherit (pkgs.nur.repos.rycee) firefox-addons;
 in {
+  german-dictionary = firefox-addons.buildFirefoxXpiAddon rec {
+    pname = "german-dictionary";
+    version = "2.1";
+    addonId = "de-DE@dictionaries.addons.mozilla.org";
+    url =
+      "https://addons.mozilla.org/firefox/downloads/file/1163876/german_dictionary-${version}.xpi?src=";
+    sha256 = "sha256-p+/vXp/fD2RgrDiVHByjdmJY2CZHrUi9h5Vb1QCc6eA=";
+    meta = with lib; {
+      description =
+        "German Dictionary (new Orthography) for spellchecking in Mozilla products";
+      license = licenses.lgpl21;
+      platforms = platforms.all;
+    };
+  };
   zotero-connector = firefox-addons.buildFirefoxXpiAddon rec {
     pname = "zotero-connector";
-    version = "5.0.107";
+    version = "5.0.108";
     addonId = "zotero@chnm.gmu.edu";
     url =
       "https://download.zotero.org/connector/firefox/release/Zotero_Connector-${version}.xpi";
-    sha256 = "sha256-RuAhWGvUhkog8SxzKhRwQQwzTQLzBKlHjSsFj9e25e4=";
+    sha256 = "sha256-Ic34T9++qZpbx8rRAhaRZfiwNClQo6iRS2RmS95v55c=";
     meta = with lib; {
       homepage = "https://www.zotero.org";
       description = "Save references to Zotero from your web browser";
@@ -16,4 +30,18 @@ in {
       platforms = platforms.all;
     };
   };
+  ddg-bangs-but-faster = firefox-addons.buildFirefoxXpiAddon rec {
+    pname = "ddg-bangs-but-faster";
+    version = "0.2.2";
+    addonId = "{55bf0dfc-ebd5-4705-a68d-61c6ac6ecad0}";
+    url =
+      "https://addons.mozilla.org/firefox/downloads/file/3743190/ddg_bangs_but_faster-${version}.xpi";
+    sha256 = "sha256-O8jvzxXH83JKydxUYUpKY/rB2s4BpG8a3gnoYgL4vLA=";
+    meta = with lib; {
+      homepage = "https://bangs-but-faster.inclushe.com/";
+      description = "Processes DuckDuckGo !bangs client-side";
+      license = licenses.mit;
+      platforms = platforms.all;
+    };
+  };
 }
diff --git a/home/browsers/mullvad-browser.nix b/home/browsers/mullvad-browser.nix
index e7b216c..8fe96f3 100644
--- a/home/browsers/mullvad-browser.nix
+++ b/home/browsers/mullvad-browser.nix
@@ -8,8 +8,8 @@ let
     # Disable DNS over HTTPS (use system DNS, i.e. VPN's DNS)
     "network.trr.mode" = 5;
 
-    # Set Security Level Safest
-    # "browser.security_level.security_slider" = 1;
+    # Set Security Level Safer
+    # "browser.security_level.security_slider" = 2;
 
     # Disable private browsing mode and enable restoring sessions
     "browser.privatebrowsing.autostart" = false;
@@ -23,6 +23,7 @@ let
   };
 
   commonExtensions = with firefox-addons; [
+    german-dictionary
     bitwarden
     libredirect
     zotero-connector