Add default firefox profile for dragyx/common

hosts/dragyx/common/configuration.nix

@@ -1,5 +1,8 @@
 { config, pkgs, ... }:
 
+let
+  username = config.modules.other.system.username;
+in
 {
   imports = [
     ../../../options/common/pin-registry.nix
@@ -15,5 +18,21 @@
     localuser = null;
   };
 
+  home-manager.users.${username} = {
+    programs.firefox.profiles = {
+      main = {
+        id = 0;
+        isDefault = true;
+        search.default = "DuckDuckGo";
+        extensions = with pkgs.nur.repos.rycee.firefox-addons; [
+          ublock-origin
+          bitwarden
+          darkreader
+          maya-dark
+        ];
+        search.force = true;
+      };
+    };
+  };
 
 }