diff --git a/README.md b/README.md
index d2c7e1d..b20067e 100644
--- a/README.md
+++ b/README.md
@@ -66,6 +66,14 @@ about:support
 ```
 
 
+## Enabling GSSAPI Kerberos SSO
+
+```
+about:config
+network.negotiate-auth.trusted-uris;.yourdomain.com
+```
+
+
 # Extra
 
 ## Extensions