diff --git a/addon/about.ismm.md b/addon/about.ismm.md
deleted file mode 100644
index 136762f85..000000000
--- a/addon/about.ismm.md
+++ /dev/null
@@ -1,25 +0,0 @@
-### Are links vulnerable to MITM attack?
-
-`Scan FQDN using Searxes API`
-
-![](../image/ismmpreview.jpg)
-
-
-```
-
-You′ve found something on the internet.
-Are these links or images vulnerable to MITM attack or not?
- 
-This add-on is using Searxes′ Public API to scan FQDN.
-	e.g. ekzemplo.com/page.html → "ekzemplo.com"
-
-This add-on never send other information.
-
-```
- 
-- Information: [About Cloudflare domain list](../instructions.md#about-cloudflare-base-domain-list)
-
-
-Download add-on
-- [Firefox ESR](https://api.searxes.eu.org/_/addon.php?dl=dl&for=ismitmlink)   (Recommend)
-- [Chromium](https://api.searxes.eu.org/_/addon.php?dl=cr&for=ismitmlink)   (Drag & drop it to `chrome://extensions/`)
\ No newline at end of file