feat(firefox): add plugins through nix

flake.nix

@@ -16,6 +16,7 @@
     nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
     pre-commit-hooks.url = "github:cachix/pre-commit-hooks.nix";
     stable.url = "github:nixos/nixpkgs/nixos-23.05";
+    nur.url = "github:nix-community/NUR";
     nix-index-database.url = "github:Mic92/nix-index-database";
     nix-index-database.inputs.nixpkgs.follows = "nixpkgs";
 
@@ -79,6 +80,10 @@
               inherit (prev) system;
               overlays = defaultOverlays;
             };
+            nur = import inputs.nur {
+              pkgs = prev;
+              nurpkgs = prev;
+            };
           }
         )
       ];

modules/programs/firefox.nix

@@ -1,6 +1,7 @@
 { config
 , lib
 , inputs
+, pkgs
 , ...
 }:
 
@@ -33,13 +34,27 @@ in
   config = mkIf cfg.enable {
     home-manager.users.moritz.programs.firefox = {
       enable = true;
-      profiles."default".extraConfig = mkIf cfg.arkenfox.enable ''
+      profiles."default" = {
+        extraConfig = mkIf cfg.arkenfox.enable ''
           // Arkenfox user.js
           ${arkenfox}
 
           // Overrides
           ${cfg.arkenfox.overrides}
         '';
+        extensions = with pkgs.nur.repos.rycee.firefox-addons; [
+          darkreader
+          firefox-color
+          istilldontcareaboutcookies
+          kagi-search
+          keepassxc-browser
+          languagetool
+          multi-account-containers
+          ublock-origin
+          wikiwand-wikipedia-modernized
+          vimium
+        ];
+      };
     };
   };
 }