--- a/toolkit/components/reader/ReaderMode.jsm
+++ b/toolkit/components/reader/ReaderMode.jsm
@@ -372,18 +372,19 @@ this.ReaderMode = {
   }),
 
   log(msg) {
     if (this.DEBUG)
       dump("Reader: " + msg);
   },
 
   _blockedHosts: [
+    "amazon.com",
+    "github.com",
     "mail.google.com",
-    "github.com",
     "pinterest.com",
     "reddit.com",
     "twitter.com",
     "youtube.com",
   ],
 
   _shouldCheckUri(uri, isBaseUri = false) {
     if (!(uri.schemeIs("http") || uri.schemeIs("https"))) {