Update home-manager + add Firefox

modules/home/apps/firefox/default.nix

@@ -0,0 +1,44 @@
+{ config, pkgs, lib, ... }:
+
+with lib;
+let
+  cfg = config.modules.home.apps.firefox;
+in
+{
+  options.modules.home.apps.firefox = {
+    enable = mkEnableOption ''
+      Enable firefox with my custom configurations
+    '';
+  };
+  config = mkIf cfg.enable {
+    programs.firefox = {
+      enable = true;
+
+      nativeMessagingHosts = [
+        pkgs.kdePackages.plasma-browser-integration
+      ];
+
+      profiles = {
+        perso = {
+          id = 0;
+
+          name = "Perso";
+
+          extensions = with pkgs.nur.repos.rycee.firefox-addons; [
+            ublock-origin
+            bitwarden
+            floccus
+            plasma-integration
+            istilldontcareaboutcookies
+            darkreader
+          ];
+
+          settings = {
+            # Enable multi-pip
+            "media.videocontrols.picture-in-picture.allow-multiple" = true;
+          };
+        };
+      };
+    };
+  };
+}