diff --git a/overlays/nixpak/firefox.nix b/overlays/nixpak/firefox.nix
index 792b9f8..ef2c338 100644
--- a/overlays/nixpak/firefox.nix
+++ b/overlays/nixpak/firefox.nix
@@ -58,7 +58,7 @@
             "/sys/bus/pci"
             "/etc/resolv.conf"
             "/etc/localtime"
-            "/etc/firefox"
+            [ "/etc/firefox" "/app/etc/firefox" ]
             (sloth.concat' sloth.xdgConfigHome "/dconf")
             (sloth.concat' sloth.xdgConfigHome "/gtk-2.0")
             (sloth.concat' sloth.xdgConfigHome "/gtk-3.0")