diff --git a/example/gm_download.js b/example/gm_download.js
index ea0e70b6b..b34674ed6 100644
--- a/example/gm_download.js
+++ b/example/gm_download.js
@@ -18,6 +18,9 @@
  * - 自定义 header
  * - 进度回调 / 完成回调
  */
+
+// 1. 下载网络资源
+
 GM_download({
     url: "https://scriptcat.org/api/v2/open/crx-download/ndcooeababalnlpkfedmmbbbgkljhpjf",
     name: "scriptcat.crx",
@@ -35,3 +38,23 @@ GM_download({
         console.log("load", data);
     },
 });
+
+// 2. 下载 Blob 资源
+// 参考： https://github.com/Tampermonkey/tampermonkey/issues/2591
+
+const pngData = new Uint8Array([
+    0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d,
+    0x49, 0x48, 0x44, 0x52, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01,
+    0x08, 0x06, 0x00, 0x00, 0x00, 0x1f, 0x15, 0xc4, 0x89, 0x00, 0x00, 0x00,
+    0x0a, 0x49, 0x44, 0x41, 0x54, 0x08, 0xd7, 0x63, 0xf8, 0xcf, 0xc0, 0x00,
+    0x00, 0x03, 0x01, 0x01, 0x00, 0xae, 0xb4, 0xfa, 0x77, 0x00, 0x00, 0x00,
+    0x00, 0x49, 0x45, 0x4e, 0x44, 0xae, 0x42, 0x60, 0x82
+]);
+
+const testImageUrl = URL.createObjectURL(new Blob([pngData], { type: 'image/png' }));
+
+GM_download({
+    url: testImageUrl,
+    name: 'test/test.png', // 储存在 test 资料夹内
+    conflictAction: 'overwrite', // 每次都使用固定的档案名
+});
diff --git a/src/app/service/content/gm_api/gm_api.ts b/src/app/service/content/gm_api/gm_api.ts
index ee37cabda..d08022046 100644
--- a/src/app/service/content/gm_api/gm_api.ts
+++ b/src/app/service/content/gm_api/gm_api.ts
@@ -887,6 +887,7 @@ export default class GMApi extends GM_Base {
             name: details.name,
             headers: details.headers,
             saveAs: details.saveAs,
+            conflictAction: details.conflictAction,
             timeout: details.timeout,
             cookie: details.cookie,
             anonymous: details.anonymous,
@@ -938,6 +939,7 @@ export default class GMApi extends GM_Base {
                   name: details.name,
                   headers: details.headers,
                   saveAs: details.saveAs,
+                  conflictAction: details.conflictAction,
                   timeout: details.timeout,
                   cookie: details.cookie,
                   anonymous: details.anonymous,