diff --git a/firefox/55-proxy_dns_socks5.yml b/firefox/55-proxy_dns_socks5.yml
index 0f86657..43a5784 100644
--- a/firefox/55-proxy_dns_socks5.yml
+++ b/firefox/55-proxy_dns_socks5.yml
@@ -2,6 +2,7 @@
 proxy_dns_socks5:
   description: Use proxy DNS when using SOCKS v5
   default: false
+  mode: advanced
   disabled:
     jinja: |
       {% if socks_version is not defined %}