diff --git a/app/firebase-messaging-sw.js/route.ts b/app/firebase-messaging-sw.js/route.ts
new file mode 100644
index 0000000..1c08b04
--- /dev/null
+++ b/app/firebase-messaging-sw.js/route.ts
@@ -0,0 +1,49 @@
+import { NextResponse } from "next/server";
+
+export const dynamic = "force-dynamic";
+
+export async function GET() {
+  const firebaseConfig = {
+    apiKey: process.env.NEXT_PUBLIC_FIREBASE_API_KEY,
+    authDomain: process.env.NEXT_PUBLIC_FIREBASE_AUTH_DOMAIN,
+    projectId: process.env.NEXT_PUBLIC_FIREBASE_PROJECT_ID,
+    storageBucket: process.env.NEXT_PUBLIC_FIREBASE_STORAGE_BUCKET,
+    messagingSenderId: process.env.NEXT_PUBLIC_FIREBASE_MESSAGING_SENDER_ID,
+    appId: process.env.NEXT_PUBLIC_FIREBASE_APP_ID,
+    measurementId: process.env.NEXT_PUBLIC_FIREBASE_MEASUREMENT_ID,
+  };
+
+  // Firebase SDK 버전은 package.json과 일치시킵니다. (현재 12.8.0 확인됨)
+  const script = `
+importScripts("https://www.gstatic.com/firebasejs/12.8.0/firebase-app-compat.js");
+importScripts("https://www.gstatic.com/firebasejs/12.8.0/firebase-messaging-compat.js");
+
+const firebaseConfig = ${JSON.stringify(firebaseConfig)};
+
+if (!firebase.apps.length) {
+  firebase.initializeApp(firebaseConfig);
+}
+const messaging = firebase.messaging();
+
+messaging.onBackgroundMessage((payload) => {
+  console.log("[Service Worker] 백그라운드 메시지 수신:", payload);
+
+  const notificationTitle = payload.notification?.title || "새 알림";
+  const notificationOptions = {
+    body: payload.notification?.body || "",
+    icon: payload.notification?.icon || "/logo/logo.svg",
+  };
+
+  self.registration.showNotification(notificationTitle, notificationOptions);
+});
+  `;
+
+  return new NextResponse(script, {
+    headers: {
+      "Content-Type": "application/javascript",
+      "Cache-Control": "no-store, no-cache, must-revalidate, proxy-revalidate",
+      Pragma: "no-cache",
+      Expires: "0",
+    },
+  });
+}
diff --git a/components/common/FcmInitializer.tsx b/components/common/FcmInitializer.tsx
index f04d0fd..19fc68d 100644
--- a/components/common/FcmInitializer.tsx
+++ b/components/common/FcmInitializer.tsx
@@ -6,14 +6,24 @@ import { registerServiceWorkerAndGetToken } from "@/lib/firebase";
 import { api } from "@/lib/axios";
 
 const FCM_REGISTERED_KEY = "fcm_registered";
-const PUBLIC_PATHS = ["/login", "/register", "/terms", "/privacy", "/reset"];
+const PUBLIC_PATHS = [
+  "/",
+  "/login",
+  "/register",
+  "/terms",
+  "/privacy",
+  "/reset",
+];
 
 export default function FcmInitializer() {
   const pathname = usePathname();
 
   useEffect(() => {
     // 공개 페이지에서는 실행 안 함
-    if (PUBLIC_PATHS.some((path) => pathname.startsWith(path))) return;
+    const isPublicPath = PUBLIC_PATHS.some((path) =>
+      path === "/" ? pathname === "/" : pathname.startsWith(path),
+    );
+    if (isPublicPath) return;
 
     // 세션 당 1회만 실행 (페이지 이동마다 중복 등록 방지)
     if (sessionStorage.getItem(FCM_REGISTERED_KEY)) return;
diff --git a/lib/axios.ts b/lib/axios.ts
index 4961324..4407a2f 100644
--- a/lib/axios.ts
+++ b/lib/axios.ts
@@ -33,7 +33,7 @@ api.interceptors.response.use(
       } catch (reissueError) {
         // 재발급 실패 → 로그인 페이지로 리다이렉트
         alert("로그인 세션이 만료되었습니다. 다시 로그인해주세요.");
-        window.location.href = "/login";
+        window.location.href = "/";
         return Promise.reject(reissueError);
       }
     }
diff --git a/lib/firebase.ts b/lib/firebase.ts
index 64520d1..63d132a 100644
--- a/lib/firebase.ts
+++ b/lib/firebase.ts
@@ -24,30 +24,6 @@ if (typeof window !== "undefined") {
   analytics = getAnalytics(app);
 }
 
-// 서비스 워커가 active 상태가 될 때까지 기다리는 헬퍼
-function waitForServiceWorkerActive(
-  registration: ServiceWorkerRegistration,
-): Promise<ServiceWorker> {
-  return new Promise((resolve) => {
-    if (registration.active) {
-      resolve(registration.active);
-      return;
-    }
-    const sw = registration.installing ?? registration.waiting;
-    if (!sw) {
-      // fallback: navigator.serviceWorker.ready 사용
-      navigator.serviceWorker.ready.then((r) => resolve(r.active!));
-      return;
-    }
-    sw.addEventListener("statechange", function handler() {
-      if (sw.state === "activated") {
-        sw.removeEventListener("statechange", handler);
-        resolve(sw);
-      }
-    });
-  });
-}
-
 // 서비스 워커 등록 및 FCM 토큰 가져오기
 export async function registerServiceWorkerAndGetToken() {
   if (typeof window === "undefined" || !("serviceWorker" in navigator)) {
@@ -55,20 +31,11 @@ export async function registerServiceWorkerAndGetToken() {
   }
 
   try {
-    // 서비스 워커 등록
+    // 서비스 워커 등록 (SW 자체에서 Firebase 초기화하므로 postMessage 불필요)
     const registration = await navigator.serviceWorker.register(
       "/firebase-messaging-sw.js",
     );
 
-    // 서비스 워커가 완전히 active 상태가 될 때까지 대기
-    const activeSW = await waitForServiceWorkerActive(registration);
-
-    // 서비스 워커에 Firebase Config 전달 (active 보장 후)
-    activeSW.postMessage({
-      type: "INIT_FIREBASE",
-      config: firebaseConfig,
-    });
-
     // Messaging 인스턴스 가져오기
     const messaging = getMessaging(app);
 
diff --git a/public/firebase-messaging-sw.js b/public/firebase-messaging-sw.js
deleted file mode 100644
index 3977375..0000000
--- a/public/firebase-messaging-sw.js
+++ /dev/null
@@ -1,38 +0,0 @@
-// public/firebase-messaging-sw.js
-
-importScripts(
-  "https://www.gstatic.com/firebasejs/12.8.0/firebase-app-compat.js",
-);
-importScripts(
-  "https://www.gstatic.com/firebasejs/12.8.0/firebase-messaging-compat.js",
-);
-
-let messaging = null;
-
-// 메인 앱에서 Firebase Config를 받아서 초기화
-self.addEventListener("message", (event) => {
-  if (event.data && event.data.type === "INIT_FIREBASE") {
-    const firebaseConfig = event.data.config;
-
-    if (!firebase.apps.length) {
-      firebase.initializeApp(firebaseConfig);
-      messaging = firebase.messaging();
-
-      // 백그라운드 알림 처리
-      messaging.onBackgroundMessage((payload) => {
-        console.log("[Service Worker] 백그라운드 메시지 수신:", payload);
-
-        const notificationTitle = payload.notification?.title || "새 알림";
-        const notificationOptions = {
-          body: payload.notification?.body || "",
-          icon: payload.notification?.icon || "/logo/logo.svg",
-        };
-
-        self.registration.showNotification(
-          notificationTitle,
-          notificationOptions,
-        );
-      });
-    }
-  }
-});