diff --git a/content.js b/content.js
index 0b6b149..bf09772 100644
--- a/content.js
+++ b/content.js
@@ -1,6 +1,20 @@
 
 const t = (key, ...args) => chrome.i18n.getMessage(key, args) || key;
 
+async function safeStorageGet(area, keys) {
+  try {
+    return await chrome.storage[area].get(keys);
+  } catch {
+    return {};
+  }
+}
+
+async function safeStorageSet(area, items) {
+  try {
+    await chrome.storage[area].set(items);
+  } catch {}
+}
+
 // 2FA / 验证码检测：检测到则不自动提交，仅填充
 function detectCaptcha() {
   // reCAPTCHA
@@ -290,36 +304,36 @@ function attemptKey(envId, domain) {
 
 async function getDomainAttempts(envId, domain) {
   const key = attemptKey(envId, domain);
-  const data = await chrome.storage.local.get("loginAttempts");
+  const data = await safeStorageGet("local", "loginAttempts");
   const attempts = data.loginAttempts || {};
   return attempts[key] || { count: 0, lastAttempt: 0 };
 }
 
 async function incrementDomainAttempts(envId, domain) {
   const key = attemptKey(envId, domain);
-  const data = await chrome.storage.local.get("loginAttempts");
+  const data = await safeStorageGet("local", "loginAttempts");
   const attempts = data.loginAttempts || {};
   const cur = attempts[key] || { count: 0, lastAttempt: 0 };
   cur.count += 1;
   cur.lastAttempt = Date.now();
   attempts[key] = cur;
-  await chrome.storage.local.set({ loginAttempts: attempts });
+  await safeStorageSet("local", { loginAttempts: attempts });
   return cur;
 }
 
 async function resetDomainAttempts(envId, domain) {
   const key = attemptKey(envId, domain);
-  const data = await chrome.storage.local.get("loginAttempts");
+  const data = await safeStorageGet("local", "loginAttempts");
   const attempts = data.loginAttempts || {};
   if (attempts[key]) {
     delete attempts[key];
-    await chrome.storage.local.set({ loginAttempts: attempts });
+    await safeStorageSet("local", { loginAttempts: attempts });
   }
 }
 
 
 async function loadAllConfigs() {
-  const data = await chrome.storage.session.get("environments");
+  const data = await safeStorageGet("session", "environments");
   const environments = data.environments || [];
   const all = [];
   environments.forEach((env) => {