diff --git a/send.ts b/send.ts
index 0501aa3..299fb2b 100644
--- a/send.ts
+++ b/send.ts
@@ -20,7 +20,12 @@
         }
 
         if (!res.ok && method === "PUT") {
-          window.alert("please start send_vrc_desktop.");
+          chrome.notifications.create({
+            type: "basic",
+            iconUrl: "./icon.png",
+            title: "send_vrc",
+            message: "please start send_vrc_desktop.",
+          });
         }
       })
       .catch((e) => {
@@ -30,7 +35,12 @@
           toVRC(url, "PUT");
         }
         if (method === "PUT") {
-          window.alert("please start send_vrc_desktop.");
+          chrome.notifications.create({
+            type: "basic",
+            iconUrl: "./icon.png",
+            title: "send_vrc",
+            message: "please start send_vrc_desktop.",
+          });
         }
       });
   };
diff --git a/static/manifest.json b/static/manifest.json
index 99340b2..4bbc495 100644
--- a/static/manifest.json
+++ b/static/manifest.json
@@ -13,6 +13,12 @@
   "background": {
     "service_worker": "send.js"
   },
-  "permissions": ["activeTab", "contextMenus", "clipboardRead", "scripting"],
+  "permissions": [
+    "activeTab",
+    "contextMenus",
+    "clipboardRead",
+    "notifications",
+    "scripting"
+  ],
   "host_permissions": ["http://localhost:11400/*"]
 }