diff --git a/firefox/00-proxy.yml b/firefox/00-proxy.yml
index 94a82bdc..1ddc3699 100644
--- a/firefox/00-proxy.yml
+++ b/firefox/00-proxy.yml
@@ -1,4 +1,6 @@
 %YAML 1.2
 ---
 version: 1.1
+
+proxy_mode:
 ...