diff --git a/overlays/nixpak/firefox.nix b/overlays/nixpak/firefox.nix
index f8000d6..2ee4f70 100644
--- a/overlays/nixpak/firefox.nix
+++ b/overlays/nixpak/firefox.nix
@@ -3,7 +3,7 @@
 # https://github.com/schizofox/schizofox/blob/cdf69b2a445ff12680657a3bd44ce7c406bf2ae6/flake/modules/home-manager/default.nix
 
 { ... }: final: prev: {
-  firefox-esr-wrapped = cfg: let
+  firefox-esr-wrapped = let
     sandboxFirefox = base: let
       sandboxed = prev.mkNixPak {
         config = { sloth, ... }: {
@@ -76,7 +76,13 @@
         };
       };
     in sandboxed.config.env // {
-      inherit (prev.firefox-esr) meta;
+      inherit (prev.firefox-esr)
+        meta
+        browserName
+        binaryName
+        version;
+
+      unwrapped = prev.firefox-esr;
     };
   in
     sandboxFirefox prev.firefox-esr;