feat: declare firefox with extensions

should probably also declare unduck...

flake.lock

@@ -68,6 +68,28 @@
         "type": "github"
       }
     },
+    "firefox-addons": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "dir": "pkgs/firefox-addons",
+        "lastModified": 1769745834,
+        "narHash": "sha256-/7EzWXFrHiF2LiuQPFUD1jhICcRa30QVa/uQCPu1Q/g=",
+        "owner": "rycee",
+        "repo": "nur-expressions",
+        "rev": "ec30ecfdee4b0df2325c2672db21684e806f4b69",
+        "type": "gitlab"
+      },
+      "original": {
+        "dir": "pkgs/firefox-addons",
+        "owner": "rycee",
+        "repo": "nur-expressions",
+        "type": "gitlab"
+      }
+    },
     "firefox-gnome-theme": {
       "flake": false,
       "locked": {
@@ -338,6 +360,7 @@
     },
     "root": {
       "inputs": {
+        "firefox-addons": "firefox-addons",
         "flake-parts": "flake-parts",
         "home-manager": "home-manager",
         "import-tree": "import-tree",

flake.nix

@@ -19,6 +19,11 @@
       url = "github:notashelf/nvf";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+
+    firefox-addons = {
+      url = "gitlab:rycee/nur-expressions?dir=pkgs/firefox-addons";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
   outputs = inputs@{ flake-parts, ... }:

modules/desktop/apps/firefox.nix

@@ -1,11 +1,25 @@
-{ ... }:
+{ inputs, config, ... }:
 
 {
   flake.modules.nixos.desktop = {
     programs.firefox.enable = true;
   };
 
-  flake.modules.homeManager.desktop = {
-    programs.firefox.enable = true;
+  flake.modules.homeManager.desktop = { pkgs, ... }: let
+    system = pkgs.stdenv.hostPlatform.system;
+    ff-addons = inputs.firefox-addons.packages.${system};
+  in {
+    programs.firefox = {
+      enable = true;
+      profiles.${config.flake.meta.user.name} = {
+        extensions.packages = with ff-addons; [
+          ublock-origin
+          sponsorblock
+          bitwarden
+          darkreader
+          youtube-shorts-block
+        ];
+      };
+    };
   };
 }