diff --git a/example/usersubscribe.js b/example/usersubscribe.user.sub.js
similarity index 100%
rename from example/usersubscribe.js
rename to example/usersubscribe.user.sub.js
diff --git a/src/runtime/content/utils.test.ts b/src/runtime/content/utils.test.ts
index e43b1fa8..507b8bd4 100644
--- a/src/runtime/content/utils.test.ts
+++ b/src/runtime/content/utils.test.ts
@@ -55,12 +55,16 @@ describe("兼容问题", () => {
   });
 });
 
-// 允许往global写入Symbol属性,影响内容: https://bbs.tampermonkey.net.cn/thread-5509-1-1.html
 describe("Symbol", () => {
   const _this = proxyContext({}, {});
+  // 允许往global写入Symbol属性,影响内容: https://bbs.tampermonkey.net.cn/thread-5509-1-1.html
   it("Symbol", () => {
     const s = Symbol("test");
     _this[s] = "ok";
     expect(_this[s]).toEqual("ok");
   });
+  // toString.call(window)返回的是'[object Object]'而不是'[object Window]',影响内容: https://github.com/scriptscat/scriptcat/issues/260
+  it("Window", () => {
+    expect(toString.call(_this)).toEqual("[object Window]");
+  });
 });
diff --git a/src/runtime/content/utils.ts b/src/runtime/content/utils.ts
index 99397073..0b3d2781 100644
--- a/src/runtime/content/utils.ts
+++ b/src/runtime/content/utils.ts
@@ -229,6 +229,8 @@ export function proxyContext(
           }
         } else if (name === Symbol.unscopables) {
           return unscopables;
+        } else if (name === Symbol.toStringTag) {
+          return name;
         }
       }
       return undefined;
@@ -317,6 +319,7 @@ export function proxyContext(
       }
     },
   });
+  proxy[Symbol.toStringTag] = "Window";
   return proxy;
 }