diff --git a/firefox/10-manual.yml b/firefox/10-manual.yml
index 304fc84a..596b79e9 100644
--- a/firefox/10-manual.yml
+++ b/firefox/10-manual.yml
@@ -2,7 +2,9 @@
 ---
 version: 1.1
 
-manual:  # Manual proxy configuration
+manual:
+  description: Manual proxy configuration
+  disabled: true
 
   http_proxy:  # HTTP Proxy