diff --git a/app_ffsync.md b/app_ffsync.md
index 64b2486c..451019b6 100644
--- a/app_ffsync.md
+++ b/app_ffsync.md
@@ -9,7 +9,7 @@ Search for: `services.sync.tokenServerURI`.
 
 Replace the URL by: https://mydomain.tld/path/token/1.0/sync/1.5
 
-Create an account at Mozilla.
+Create an account at Mozilla : https://accounts.firefox.com/signup
 
 #### Firefox mobile
 Install the plugin `fxa-custom-server-addon`.
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