diff --git a/overlays/firefox.nix b/overlays/firefox.nix
index 7c5f5ae3..f2cbcbf2 100644
--- a/overlays/firefox.nix
+++ b/overlays/firefox.nix
@@ -1,3 +1,5 @@
 self: super: {
   firefox = super.firefox.override { extraNativeMessagingHosts = [ self.passff-host ]; pkcs11Modules = [ self.eid-mw ]; };
+  # Avoids a double firefox install, see https://github.com/NixOS/nixpkgs/pull/31772
+  firefox-bin = self.firefox;
 }