diff --git a/addon_firefox/ismitmlink/README.md b/addon_firefox/ismitmlink/README.md
index 961af71..f071f5f 100644
--- a/addon_firefox/ismitmlink/README.md
+++ b/addon_firefox/ismitmlink/README.md
@@ -15,4 +15,4 @@ This add-on is using Searxes' "MITM test API" to scan FQDN(URL's hostname).
 This add-on never send other information.
 ```
 
-[Download add-on](https://api.searxes.eu.org/_/addon.php?dl=dl&for=ismitmlink)
\ No newline at end of file
+[Download add-on](https://api.searxes.eu.org/_/addon.php?dl=dl&for=ismitmlink)  *Firefox 60+*
\ No newline at end of file