diff --git a/src/common/component/UnreadTabTip.tsx b/src/common/component/UnreadTabTip.tsx
new file mode 100644
index 00000000..1af12aee
--- /dev/null
+++ b/src/common/component/UnreadTabTip.tsx
@@ -0,0 +1,72 @@
+import { useEffect } from 'react';
+import { useAppSelector } from '../../app/store';
+import getUnreadCount from '../../routes/chat/utils';
+
+// type Props = {}
+let total = 0;
+let title = "";
+const UnreadTabTip = () => {
+    const { userData, dmMids, channelMids, messageData, readChannels, readUsers, loginUid } = useAppSelector(store => {
+        return {
+            userData: store.users.byId,
+            dmMids: store.userMessage.byId,
+            channelMids: store.channelMessage,
+            messageData: store.message,
+            readChannels: store.footprint.readChannels,
+            readUsers: store.footprint.readUsers,
+            loginUid: store.authData.user?.uid ?? 0
+        };
+    });
+
+    useEffect(() => {
+        total = 0;
+        // dm
+        Object.entries(dmMids).forEach(([id, mids]) => {
+            if (userData[+id]) {
+                const { unreads = 0 } = getUnreadCount({
+                    mids,
+                    readIndex: readUsers[+id],
+                    messageData,
+                    loginUid
+                });
+                if (unreads > 0) {
+                    console.log("unreadsss", id, mids);
+                }
+                total += unreads;
+            }
+        });
+        // channel
+        Object.entries(channelMids).map(([id, mids]) => {
+            const { unreads = 0 } = getUnreadCount({
+                mids,
+                readIndex: readChannels[+id],
+                messageData,
+                loginUid
+            });
+            total += unreads;
+        });
+        const handler = () => {
+            console.log("changed", document.hidden, total);
+
+            if (document.hidden) {
+                title = document.title;
+                if (total > 0) {
+                    document.title = `[${total}]-${title}`;
+                }
+            } else {
+                document.title = title;
+            }
+        };
+        document.addEventListener("visibilitychange", handler);
+        if (document.hidden && total > 0) {
+            document.title = `[${total}]-${title}`;
+        }
+        return () => {
+            document.removeEventListener("visibilitychange", handler);
+        };
+    }, [userData, dmMids, channelMids, readChannels, messageData, loginUid, readUsers]);
+
+    return null;
+};
+
+export default UnreadTabTip;
\ No newline at end of file
diff --git a/src/routes/home/index.tsx b/src/routes/home/index.tsx
index 14ec846a..4c368f1c 100644
--- a/src/routes/home/index.tsx
+++ b/src/routes/home/index.tsx
@@ -17,6 +17,7 @@ import FolderIcon from "../../assets/icons/folder.svg";
 import { useAppSelector } from "../../app/store";
 import MobileNavs from "./MobileNavs";
 import { updateRememberedNavs } from "../../app/slices/ui";
+import UnreadTabTip from "../../common/component/UnreadTabTip";
 
 
 function HomePage() {
@@ -61,6 +62,7 @@ function HomePage() {
   const linkClass = `flex items-center gap-2.5 px-3 py-2 font-semibold text-sm text-gray-600 rounded-lg md:hover:bg-gray-800/10`;
   return (
     <>
+      <UnreadTabTip />
       <Manifest />
       {!guest && <Notification />}
       <div className={`vocechat-container flex w-screen h-screen bg-gray-200 dark:bg-gray-900`}>