diff --git a/srcpkgs/firefox/template b/srcpkgs/firefox/template
index 9107f50fb6e..a173f07355b 100644
--- a/srcpkgs/firefox/template
+++ b/srcpkgs/firefox/template
@@ -90,6 +90,8 @@ do_build() {
 	fi
 
 	export MOZ_MAKE_FLAGS="${makejobs}"
+	export MOZ_NOSPAM=1
+	export MOZBUILD_STATE_PATH="${wrksrc}/mozbuild"
 
 	export AS=$CC