diff --git a/README.md b/README.md
index 8450c9dc868976d99ca87d1f7e9988ea23bba9a5..2efc7239a1027b282a44753034a796483e703d8b 100644
--- a/README.md
+++ b/README.md
@@ -49,5 +49,9 @@ vagrant provision
 
 s4uC3
 * https://raymii.org/s/
-* (firefox add ons) https://addons.mozilla.org/fr/firefox/addon/calomel-ssl-validation/
+  * ssl-decoder https://github.com/RaymiiOrg/ssl-decoder
+* firefox add ons
+  * https://addons.mozilla.org/fr/firefox/addon/calomel-ssl-validation/
+  * https://addons.mozilla.org/fr/firefox/addon/toggle-cipher-suites/
+  * https://addons.mozilla.org/fr/firefox/addon/ssleuth/
 * https://blogs.msdn.microsoft.com/benjaminperkins/2014/05/05/make-your-own-ssl-certificate-for-testing-and-learning/