diff --git a/background.js b/background.js
index 90e19cd..6e1b9ec 100644
--- a/background.js
+++ b/background.js
@@ -840,11 +840,13 @@ ext_api.webRequest.onBeforeSendHeaders.addListener(function(details) {
   // remove cookies for sites medium platform (custom domains)
   var medium_custom_domain = (matchUrlDomain('cdn-client.medium.com', details.url) && !matchUrlDomain(['medium.com', 'towardsdatascience.com'], header_referer) && enabledSites.includes('###_medium_custom'));
   if (medium_custom_domain) {
-    ext_api.cookies.getAll({domain: urlHost(header_referer)}, function(cookies) {
-      for (let cookie of cookies) {
-        ext_api.cookies.remove({url: (cookie.secure ? "https://" : "http://") + cookie.domain + cookie.path, name: cookie.name});
-      }
-    });
+    let mc_domain = urlHost(header_referer);
+    if (!use_twitter_referer.includes(mc_domain)) {
+      use_twitter_referer.push(mc_domain);
+      change_headers.push(mc_domain);
+    }
+    if (!enabledSites.includes(mc_domain))
+      enabledSites.push(mc_domain);
   }
 
   // block external javascript for custom sites (optional)
diff --git a/changelog.txt b/changelog.txt
index 9ea9a72..abd0f66 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -8,7 +8,8 @@ Add Le Un (France)
 Add Rheinische Post Mediengruppe (only plus if amp)
 Fix-update ilManifesto.it
 Fix-update Madsack Mediengruppe (amp)
-Fix-update Medium/Towards Data Science (login) & add custom domains in options
+Fix-update Medium/Towards Data Science (login)
+Fix-update Medium custom domains (login & in options)
 Fix-update Stratfor (style; not menu)
 Fix-update Sud Ouest (decode text)
 Update custom sites (set referer)