diff --git a/configuration.nix b/configuration.nix
index 35beec8..206f5bf 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -4,7 +4,13 @@ let
   stateVersion = "23.05";
   home-manager = builtins.fetchTarball "https://github.com/nix-community/home-manager/archive/release-${stateVersion}.tar.gz";
 in
-{
+  {
+    nixpkgs.config.packageOverrides = pkgs: {
+      nur = import (builtins.fetchTarball "https://github.com/nix-community/NUR/archive/master.tar.gz") {
+        inherit pkgs;
+      };
+    };
+
   imports =
     [
       ./hardware-configuration.nix
diff --git a/home.nix b/home.nix
index b819ac7..0dbba0b 100644
--- a/home.nix
+++ b/home.nix
@@ -12,13 +12,18 @@
   programs = {
     home-manager.enable = true;
     alacritty.enable = true;
-    # ripgrep.enable = true;
 
     firefox = {
       enable = true;
       profiles.default = {
         id = 0;
         isDefault = true;
+        settings = {
+          "browser.aboutConfig.showWarning" = false;
+        };
+        extensions = with pkgs.nur.repos.rycee.firefox-addons; [
+          ublock-origin
+        ];
       };
     };