diff --git a/README.md b/README.md
index 99e6008..d190c95 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,3 @@
 # simple-translate
 シンプルな翻訳を表示するFirefox向けアドオン
+[![addons.mozilla.org/](https://addons.cdn.mozilla.net/static/img/addons-buttons/AMO-button_2.png)](https://addons.mozilla.org/ja/firefox/addon/simple-translate)