diff --git a/README.md b/README.md
index cad4132..93e6540 100644
--- a/README.md
+++ b/README.md
@@ -12,10 +12,14 @@
 
 ## 介绍
 
-![](https://i.imgur.com/9oZpzJe.jpg)
-
 [Telegram 群](https://t.me/rsshub)
 
+RSSHub Radar 是 [RSSHub](https://github.com/DIYgod/RSSHub) 的衍生项目，她是一个可以帮助你快速发现和订阅当前网站自带的 RSS 及支持当前网站的 RSSHub 的浏览器扩展
+
+![](https://i.imgur.com/3z6kCEQ.jpg)
+
+![](https://i.imgur.com/euEIwkG.jpg)
+
 ## 安装
 
 <a href="https://chrome.google.com/webstore/detail/kefjpfngnndepjbopdmoebkipbgkggaa"><img src="https://raw.githubusercontent.com/alrra/browser-logos/master/src/chrome/chrome_128x128.png" width="48" /></a>
diff --git a/src/js/common/config.js b/src/js/common/config.js
index c0c62d8..84e0b41 100644
--- a/src/js/common/config.js
+++ b/src/js/common/config.js
@@ -12,9 +12,13 @@ export const defaultConfig = {
 };
 
 export function getConfig (success) {
-    chrome.storage.local.get('config', (result) => {
-        success(Object.assign({}, defaultConfig, result.config));
-    });
+    if (chrome.storage) {
+        chrome.storage.local.get('config', (result) => {
+            success(Object.assign({}, defaultConfig, result.config));
+        });
+    } else {
+        success(defaultConfig);
+    }
 }
 
 export function saveConfig (config, success) {
@@ -22,9 +26,11 @@ export function saveConfig (config, success) {
         config.rsshubDomain = defaultConfig.rsshubDomain;
     }
     config.rsshubDomain = config.rsshubDomain.replace(/\/$/, '');
-    chrome.storage.local.set({
-        config,
-    }, () => {
-        success();
-    });
+    if (chrome.storage) {
+        chrome.storage.local.set({
+            config,
+        }, () => {
+            success();
+        });
+    }
 }
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