diff --git a/src/app/service/service_worker/client.ts b/src/app/service/service_worker/client.ts
index 78e886aca..ceb1ea124 100644
--- a/src/app/service/service_worker/client.ts
+++ b/src/app/service/service_worker/client.ts
@@ -273,7 +273,7 @@ export class ScriptClient extends Client {
   }
 
   async openUpdatePageByUUID(uuid: string) {
-    return this.do<void>("openUpdatePageByUUID", uuid);
+    return this.do<boolean>("openUpdatePageByUUID", uuid);
   }
 
   async openBatchUpdatePage(opts: TOpenBatchUpdatePageOption) {
diff --git a/src/app/service/service_worker/script.test.ts b/src/app/service/service_worker/script.test.ts
index cb9574649..317c3716a 100644
--- a/src/app/service/service_worker/script.test.ts
+++ b/src/app/service/service_worker/script.test.ts
@@ -23,6 +23,24 @@ import { ScriptClient } from "./client";
 import { SELF_METADATA_ONLY_RUN_ON_URL } from "@App/app/repo/metadata";
 import { BatchUpdateListActionCode } from "./types";
 import { stackAsyncTask } from "@App/pkg/utils/async_queue";
+import type * as ScriptUtils from "@App/pkg/utils/script";
+import type * as Utils from "@App/pkg/utils/utils";
+
+// 打开更新详情页会真的发网络请求并开标签页；这两处替换成可断言的桩
+const h = vi.hoisted(() => ({
+  fetchScriptBody: vi.fn(),
+  openInCurrentTab: vi.fn(),
+}));
+
+vi.mock("@App/pkg/utils/script", async (importOriginal) => ({
+  ...(await importOriginal<typeof ScriptUtils>()),
+  fetchScriptBody: h.fetchScriptBody,
+}));
+
+vi.mock("@App/pkg/utils/utils", async (importOriginal) => ({
+  ...(await importOriginal<typeof Utils>()),
+  openInCurrentTab: h.openInCurrentTab,
+}));
 
 initTestEnv();
 
@@ -1434,3 +1452,94 @@ describe("ScriptService._checkScriptUpdate —— 检查期间脚本被更新",
     expect(service["scriptUpdateCheck"].cacheFull?.list?.find((e) => e.uuid === "u-stable")?.checkUpdate).toBe(true);
   });
 });
+
+describe("ScriptService.openUpdatePageByUUID —— 打开单条更新详情", () => {
+  const URL = "https://example.test/open.user.js";
+  const userscript = (version: string) =>
+    [
+      "// ==UserScript==",
+      "// @name        更新详情目标",
+      "// @namespace   scriptcat-test",
+      `// @version     ${version}`,
+      "// ==/UserScript==",
+      "console.log(1);",
+    ].join("\n");
+
+  const saveTarget = async (service: ScriptService, scriptDAO: ScriptDAO) => {
+    await scriptDAO.save(
+      makeScript({
+        uuid: "u-open",
+        name: "更新详情目标",
+        namespace: "scriptcat-test",
+        metadata: { name: ["更新详情目标"], namespace: ["scriptcat-test"], version: ["1.0.0"] },
+        downloadUrl: URL,
+        checkUpdateUrl: URL,
+        checkUpdate: true,
+      })
+    );
+    await service.scriptCodeDAO.save({ uuid: "u-open", code: userscript("1.0.0") });
+  };
+
+  const primeCache = (service: ScriptService, newCode: string) =>
+    service["scriptUpdateCheck"].setCacheFull({
+      checktime: Date.now(),
+      list: [
+        {
+          uuid: "u-open",
+          checkUpdate: true,
+          oldCode: userscript("1.0.0"),
+          newCode,
+          newMeta: { version: ["2.0.0"], connect: [] },
+          script: makeScript({ uuid: "u-open", name: "更新详情目标", namespace: "scriptcat-test" }),
+          codeSimilarity: 0.9,
+          sites: [],
+          withNewConnect: false,
+        },
+      ],
+    });
+
+  beforeEach(() => {
+    h.fetchScriptBody.mockReset();
+    h.openInCurrentTab.mockReset();
+  });
+
+  it("检查记录里已带新版代码时直接打开安装页,不再重新拉取脚本", async () => {
+    const { service, scriptDAO } = buildService();
+    await saveTarget(service, scriptDAO);
+    primeCache(service, userscript("2.0.0"));
+
+    await expect(service.openUpdatePageByUUID("u-open")).resolves.toBe(true);
+
+    expect(h.fetchScriptBody).not.toHaveBeenCalled();
+    expect(h.openInCurrentTab).toHaveBeenCalledWith("/src/install.html?uuid=u-open");
+  });
+
+  it("检查记录已失效时回退到网络拉取并照常打开安装页", async () => {
+    const { service, scriptDAO } = buildService();
+    await saveTarget(service, scriptDAO);
+    h.fetchScriptBody.mockResolvedValue(userscript("2.0.0"));
+
+    await expect(service.openUpdatePageByUUID("u-open")).resolves.toBe(true);
+
+    expect(h.fetchScriptBody).toHaveBeenCalledWith(URL);
+    expect(h.openInCurrentTab).toHaveBeenCalledWith("/src/install.html?uuid=u-open");
+  });
+
+  it("拉取失败时回报 false,让更新页能给出失败反馈而不是一直转圈", async () => {
+    const { service, scriptDAO } = buildService();
+    await saveTarget(service, scriptDAO);
+    h.fetchScriptBody.mockRejectedValue(new Error("network error"));
+
+    await expect(service.openUpdatePageByUUID("u-open")).resolves.toBe(false);
+
+    expect(h.openInCurrentTab).not.toHaveBeenCalled();
+  });
+
+  it("脚本已不存在时回报 false 而不是静默无反应", async () => {
+    const { service } = buildService();
+
+    await expect(service.openUpdatePageByUUID("missing")).resolves.toBe(false);
+
+    expect(h.openInCurrentTab).not.toHaveBeenCalled();
+  });
+});
diff --git a/src/app/service/service_worker/script.ts b/src/app/service/service_worker/script.ts
index 89c90a162..969b7a63a 100644
--- a/src/app/service/service_worker/script.ts
+++ b/src/app/service/service_worker/script.ts
@@ -1168,9 +1168,20 @@ export class ScriptService {
     options: { source: InstallSource; byWebRequest?: boolean },
     update: boolean,
     logger?: Logger
+  ) {
+    return this.prepareUpdateOrInstallPage(uuid, await fetchScriptBody(url), url, options, update, logger);
+  }
+
+  /** 已经拿到脚本代码之后的处理：静默更新判定 + 写入待安装的临时代码，由调用方决定是否打开安装页 */
+  async prepareUpdateOrInstallPage(
+    uuid: string,
+    code: string,
+    url: string,
+    options: { source: InstallSource; byWebRequest?: boolean },
+    update: boolean,
+    logger?: Logger
   ) {
     const upsertBy = options.source;
-    const code = await fetchScriptBody(url);
     if (update) {
       try {
         const { oldScript, script } = await prepareScriptByCode(code, url, uuid);
@@ -1221,8 +1232,11 @@ export class ScriptService {
     return 1;
   }
 
-  // 打开更新窗口
-  public async openUpdatePage(script: Script, source: "user" | "system") {
+  /**
+   * 打开更新窗口。cachedNewCode 是检查阶段已经拉到的新版代码，命中时直接复用。
+   * @returns 是否已处理（打开了安装页或完成了静默更新）
+   */
+  public async openUpdatePage(script: Script, source: "user" | "system", cachedNewCode?: string) {
     const { uuid, name, downloadUrl, checkUpdateUrl } = script;
     const logger = this.logger.with({
       uuid,
@@ -1232,12 +1246,16 @@ export class ScriptService {
     });
     const url = downloadUrl || checkUpdateUrl!;
     try {
-      const ret = await this.openUpdateOrInstallPage(uuid, url, { source }, true, logger);
-      if (ret === 2) return; // slience update
+      const ret = cachedNewCode
+        ? await this.prepareUpdateOrInstallPage(uuid, cachedNewCode, url, { source }, true, logger)
+        : await this.openUpdateOrInstallPage(uuid, url, { source }, true, logger);
+      if (ret === 2) return true; // slience update
       // 打开安装页面
       openInCurrentTab(`/src/install.html?uuid=${uuid}`);
+      return true;
     } catch (e) {
       logger.error("fetch script info failed", Logger.E(e));
+      return false;
     }
   }
 
@@ -1766,12 +1784,12 @@ export class ScriptService {
 
   async openUpdatePageByUUID(uuid: string) {
     const source = "user"; // TBC
-    const oldScript = await this.scriptDAO.get(uuid);
-    if (!oldScript || oldScript.uuid !== uuid) return;
-    const { name, downloadUrl, checkUpdateUrl } = oldScript;
-    //@ts-ignore
-    const script = { uuid, name, downloadUrl, checkUpdateUrl } as Script;
-    await this.openUpdatePage(script, source);
+    const script = await this.scriptDAO.get(uuid);
+    if (!script || script.uuid !== uuid) return false;
+    // 检查记录里已经带着这次要装的新版代码：复用它既省掉一次让用户干等的网络往返，
+    // 也保证打开的正是列表上展示的那一版
+    const cachedNewCode = this.scriptUpdateCheck.cacheFull?.list?.find((entry) => entry.uuid === uuid)?.newCode;
+    return await this.openUpdatePage(script, source, cachedNewCode || undefined);
   }
 
   init() {
diff --git a/src/locales/de-DE/install.json b/src/locales/de-DE/install.json
index f46724241..be1cc2364 100644
--- a/src/locales/de-DE/install.json
+++ b/src/locales/de-DE/install.json
@@ -128,7 +128,8 @@
     "batch_done": "{{count}} Skripte aktualisiert",
     "batch_done_partial": "{{updated}} aktualisiert, {{failed}} fehlgeschlagen",
     "view_updated_scripts": "Aktualisierte Skripte anzeigen",
-    "record_expired": "Die Update-Daten sind abgelaufen. Bitte erneut nach Updates suchen."
+    "record_expired": "Die Update-Daten sind abgelaufen. Bitte erneut nach Updates suchen.",
+    "open_failed": "Update-Details konnten nicht geöffnet werden. Bitte erneut versuchen."
   },
   "importpage": {
     "title": "Datenimport",
diff --git a/src/locales/en-US/install.json b/src/locales/en-US/install.json
index 616d754b9..d779420c1 100644
--- a/src/locales/en-US/install.json
+++ b/src/locales/en-US/install.json
@@ -128,7 +128,8 @@
     "batch_done": "Updated {{count}} scripts",
     "batch_done_partial": "Updated {{updated}}, {{failed}} failed",
     "view_updated_scripts": "View updated scripts",
-    "record_expired": "Update data has expired. Please check for updates again."
+    "record_expired": "Update data has expired. Please check for updates again.",
+    "open_failed": "Failed to open update details. Please try again."
   },
   "importpage": {
     "title": "Data Import",
diff --git a/src/locales/ja-JP/install.json b/src/locales/ja-JP/install.json
index 9f8d43cd9..13c91cc4c 100644
--- a/src/locales/ja-JP/install.json
+++ b/src/locales/ja-JP/install.json
@@ -128,7 +128,8 @@
     "batch_done": "{{count}} 件を更新しました",
     "batch_done_partial": "{{updated}} 件を更新、{{failed}} 件が失敗",
     "view_updated_scripts": "更新したスクリプトを表示",
-    "record_expired": "更新データの有効期限が切れました。もう一度更新を確認してください"
+    "record_expired": "更新データの有効期限が切れました。もう一度更新を確認してください",
+    "open_failed": "更新の詳細を開けませんでした。もう一度お試しください"
   },
   "importpage": {
     "title": "データインポート",
diff --git a/src/locales/ko-KR/install.json b/src/locales/ko-KR/install.json
index 29a94e7d4..f19aa40ae 100644
--- a/src/locales/ko-KR/install.json
+++ b/src/locales/ko-KR/install.json
@@ -128,7 +128,8 @@
     "batch_done": "{{count}}개를 업데이트했습니다",
     "batch_done_partial": "{{updated}}개 업데이트, {{failed}}개 실패",
     "view_updated_scripts": "업데이트된 스크립트 보기",
-    "record_expired": "업데이트 데이터가 만료되었습니다. 업데이트를 다시 확인하세요"
+    "record_expired": "업데이트 데이터가 만료되었습니다. 업데이트를 다시 확인하세요",
+    "open_failed": "업데이트 상세 정보를 열지 못했습니다. 다시 시도하세요"
   },
   "importpage": {
     "title": "데이터 가져오기",
diff --git a/src/locales/pt-BR/install.json b/src/locales/pt-BR/install.json
index c8f1f3ccc..28d3f2bfe 100644
--- a/src/locales/pt-BR/install.json
+++ b/src/locales/pt-BR/install.json
@@ -128,7 +128,8 @@
     "batch_done": "{{count}} scripts atualizados",
     "batch_done_partial": "{{updated}} atualizados, {{failed}} com falha",
     "view_updated_scripts": "Ver scripts atualizados",
-    "record_expired": "Os dados de atualização expiraram. Verifique as atualizações novamente."
+    "record_expired": "Os dados de atualização expiraram. Verifique as atualizações novamente.",
+    "open_failed": "Falha ao abrir os detalhes da atualização. Tente novamente."
   },
   "importpage": {
     "title": "Importação de dados",
diff --git a/src/locales/ru-RU/install.json b/src/locales/ru-RU/install.json
index a2c0c9df1..c8cf727a4 100644
--- a/src/locales/ru-RU/install.json
+++ b/src/locales/ru-RU/install.json
@@ -128,7 +128,8 @@
     "batch_done": "Обновлено скриптов: {{count}}",
     "batch_done_partial": "Обновлено: {{updated}}, с ошибкой: {{failed}}",
     "view_updated_scripts": "Показать обновлённые скрипты",
-    "record_expired": "Данные об обновлениях устарели. Проверьте обновления заново."
+    "record_expired": "Данные об обновлениях устарели. Проверьте обновления заново.",
+    "open_failed": "Не удалось открыть сведения об обновлении. Попробуйте ещё раз."
   },
   "importpage": {
     "title": "Импорт данных",
diff --git a/src/locales/tr-TR/install.json b/src/locales/tr-TR/install.json
index 1e85ef0d8..a660c0a26 100644
--- a/src/locales/tr-TR/install.json
+++ b/src/locales/tr-TR/install.json
@@ -128,7 +128,8 @@
     "batch_done": "{{count}} betik güncellendi",
     "batch_done_partial": "{{updated}} güncellendi, {{failed}} başarısız",
     "view_updated_scripts": "Güncellenen betikleri gör",
-    "record_expired": "Güncelleme verileri geçersiz oldu. Lütfen güncellemeleri yeniden denetleyin."
+    "record_expired": "Güncelleme verileri geçersiz oldu. Lütfen güncellemeleri yeniden denetleyin.",
+    "open_failed": "Güncelleme ayrıntıları açılamadı. Lütfen yeniden deneyin."
   },
   "importpage": {
     "title": "Veri İçe Aktarma",
diff --git a/src/locales/vi-VN/install.json b/src/locales/vi-VN/install.json
index 1fb53a00a..2118327dc 100644
--- a/src/locales/vi-VN/install.json
+++ b/src/locales/vi-VN/install.json
@@ -128,7 +128,8 @@
     "batch_done": "Đã cập nhật {{count}} tập lệnh",
     "batch_done_partial": "Đã cập nhật {{updated}}, {{failed}} thất bại",
     "view_updated_scripts": "Xem tập lệnh đã cập nhật",
-    "record_expired": "Dữ liệu cập nhật đã hết hiệu lực. Vui lòng kiểm tra cập nhật lại."
+    "record_expired": "Dữ liệu cập nhật đã hết hiệu lực. Vui lòng kiểm tra cập nhật lại.",
+    "open_failed": "Không mở được chi tiết cập nhật. Vui lòng thử lại."
   },
   "importpage": {
     "title": "Nhập dữ liệu",
diff --git a/src/locales/zh-CN/install.json b/src/locales/zh-CN/install.json
index f9198e378..f3fbc1631 100644
--- a/src/locales/zh-CN/install.json
+++ b/src/locales/zh-CN/install.json
@@ -128,7 +128,8 @@
     "batch_done": "已更新 {{count}} 个",
     "batch_done_partial": "已更新 {{updated}} 个，{{failed}} 个失败",
     "view_updated_scripts": "查看更新的脚本",
-    "record_expired": "更新数据已过期，请重新检查更新"
+    "record_expired": "更新数据已过期，请重新检查更新",
+    "open_failed": "打开更新详情失败，请重试"
   },
   "importpage": {
     "title": "数据导入",
diff --git a/src/locales/zh-TW/install.json b/src/locales/zh-TW/install.json
index c6d6684db..6c1a080e0 100644
--- a/src/locales/zh-TW/install.json
+++ b/src/locales/zh-TW/install.json
@@ -128,7 +128,8 @@
     "batch_done": "已更新 {{count}} 個",
     "batch_done_partial": "已更新 {{updated}} 個，{{failed}} 個失敗",
     "view_updated_scripts": "檢視已更新的腳本",
-    "record_expired": "更新資料已過期，請重新檢查更新"
+    "record_expired": "更新資料已過期，請重新檢查更新",
+    "open_failed": "開啟更新詳情失敗，請重試"
   },
   "importpage": {
     "title": "資料匯入",
diff --git a/src/pages/batchupdate/components.test.tsx b/src/pages/batchupdate/components.test.tsx
index b683b09e1..f723aae98 100644
--- a/src/pages/batchupdate/components.test.tsx
+++ b/src/pages/batchupdate/components.test.tsx
@@ -39,6 +39,7 @@ function mkView(p: Partial<BatchUpdateViewProps> = {}): BatchUpdateViewProps {
     autoClose: null,
     autoCloseCancelled: false,
     rowStates: {},
+    opening: new Set(),
     batchProgress: null,
     recordExpired: false,
     onToggle: () => {},
@@ -358,3 +359,32 @@ describe("批量更新 全部恢复并更新的确认", () => {
     expect(screen.getByTestId("ignored-restore-all")).toHaveTextContent(t("install:updatepage.restore_all"));
   });
 });
+
+describe("批量更新 打开更新详情进行中", () => {
+  it("桌面行在打开期间转圈并拒绝再次点击", () => {
+    const onOpen = vi.fn();
+    renderDesktop({ updates: [mkItem()], opening: new Set(["u1"]), onOpen });
+
+    const name = screen.getByTestId("script-name");
+    expect(name).toHaveAttribute("aria-busy", "true");
+    expect(name.querySelector(".animate-spin")).toBeTruthy();
+
+    fireEvent.click(name);
+    expect(onOpen).not.toHaveBeenCalled();
+  });
+
+  it("未在打开时点击脚本名进入更新详情", () => {
+    const onOpen = vi.fn();
+    renderDesktop({ updates: [mkItem()], opening: new Set(), onOpen });
+
+    fireEvent.click(screen.getByTestId("script-name"));
+
+    expect(onOpen).toHaveBeenCalledWith("u1");
+  });
+
+  it("移动卡片在打开期间同样标记为进行中", () => {
+    renderMobile({ updates: [mkItem()], opening: new Set(["u1"]) });
+
+    expect(screen.getByTestId("script-name")).toHaveAttribute("aria-busy", "true");
+  });
+});
diff --git a/src/pages/batchupdate/components.tsx b/src/pages/batchupdate/components.tsx
index 2c9c39bbb..debbd9797 100644
--- a/src/pages/batchupdate/components.tsx
+++ b/src/pages/batchupdate/components.tsx
@@ -45,6 +45,8 @@ export interface BatchUpdateViewProps {
   autoCloseCancelled: boolean;
   /** 按 uuid 索引的行内更新状态；不在表内即为初始态 */
   rowStates: Record<string, RowState>;
+  /** 正在打开更新详情页的脚本 uuid：服务端备代码期间行内转圈并挡住重复点击 */
+  opening: Set<string>;
   /** 批量操作进度；为 null 表示当前没有批量操作 */
   batchProgress: BatchProgress | null;
   /** 服务端检查结果已失效，需重新检查更新 */
@@ -168,16 +170,20 @@ export function SourceCell({ source }: { source: string }) {
   );
 }
 
-/** 可点击跳转更新详情页的脚本名（过长时 tooltip 显示全名） */
-export function ScriptName({ name, onClick }: { name: string; onClick: () => void }) {
+/** 可点击跳转更新详情页的脚本名（过长时 tooltip 显示全名）；loading 期间转圈并拒绝再次点击 */
+export function ScriptName({ name, loading, onClick }: { name: string; loading?: boolean; onClick: () => void }) {
   return (
     <HoverTip content={name}>
       <button
         type="button"
         onClick={onClick}
-        className="min-w-0 flex-1 truncate text-left text-sm font-medium text-foreground hover:text-primary hover:underline"
+        disabled={loading}
+        aria-busy={loading}
+        data-testid="script-name"
+        className="flex min-w-0 flex-1 items-center gap-1.5 text-left text-sm font-medium text-foreground hover:text-primary hover:underline disabled:cursor-progress"
       >
-        {name}
+        <span className="truncate">{name}</span>
+        {loading && <Loader2 className="size-3.5 shrink-0 animate-spin text-primary" />}
       </button>
     </HoverTip>
   );
@@ -408,6 +414,7 @@ function DesktopRow({
   item,
   state,
   selected,
+  opening,
   onToggle,
   onOpen,
   onUpdate,
@@ -418,6 +425,7 @@ function DesktopRow({
   item: UpdateItem;
   state?: RowState;
   selected?: boolean;
+  opening?: boolean;
   onToggle?: (uuid: string) => void;
   onOpen: (uuid: string) => void;
   onUpdate?: (item: UpdateItem) => void;
@@ -444,7 +452,7 @@ function DesktopRow({
       </div>
       <div className={cn("flex flex-1 items-center gap-2.5 min-w-0", dim)}>
         <ScriptAvatar name={item.name} iconUrl={item.iconUrl} />
-        <ScriptName name={item.name} onClick={() => onOpen(item.uuid)} />
+        <ScriptName name={item.name} loading={opening} onClick={() => onOpen(item.uuid)} />
         <StatusBadge enabled={item.enabled} />
       </div>
       <div className={cn(COL.version, dim)}>
@@ -493,6 +501,7 @@ function DesktopTable({ view }: { view: BatchUpdateViewProps }) {
           item={item}
           state={view.rowStates[item.uuid]}
           selected={view.selected.has(item.uuid)}
+          opening={view.opening.has(item.uuid)}
           onToggle={view.onToggle}
           onOpen={view.onOpen}
           onUpdate={view.onUpdate}
@@ -525,6 +534,7 @@ function DesktopIgnored({ view }: { view: BatchUpdateViewProps }) {
               item={item}
               state={view.rowStates[item.uuid]}
               ignoredRow
+              opening={view.opening.has(item.uuid)}
               onOpen={view.onOpen}
               onRestore={view.onRestore}
             />
diff --git a/src/pages/batchupdate/hooks.test.ts b/src/pages/batchupdate/hooks.test.ts
index a5b0fac3b..0c9258b45 100644
--- a/src/pages/batchupdate/hooks.test.ts
+++ b/src/pages/batchupdate/hooks.test.ts
@@ -19,9 +19,10 @@ const h = vi.hoisted(() => ({
   sendUpdatePageOpened: vi.fn(() => Promise.resolve()),
   requestCheckScriptUpdate: vi.fn(() => Promise.resolve()),
   requestBatchUpdateListAction: vi.fn((): Promise<TBatchUpdateResult | undefined> => Promise.resolve(undefined)),
-  requestOpenUpdatePageByUUID: vi.fn(() => Promise.resolve()),
+  requestOpenUpdatePageByUUID: vi.fn(() => Promise.resolve(true)),
   toastSuccess: vi.fn(),
   toastWarning: vi.fn(),
+  toastError: vi.fn(),
   openInCurrentTab: vi.fn(() => Promise.resolve()),
 }));
 
@@ -50,7 +51,7 @@ vi.mock("@App/pages/store/global", () => ({
 vi.mock("@App/pages/components/ui/toast", () => ({
   notify: {
     success: h.toastSuccess,
-    error: vi.fn(),
+    error: h.toastError,
     info: vi.fn(),
     warning: h.toastWarning,
     loading: vi.fn(),
@@ -373,3 +374,59 @@ describe("批量更新 Hook useBatchUpdate 查看更新的脚本", () => {
     expect(h.openInCurrentTab).toHaveBeenCalledWith("/src/options.html#/");
   });
 });
+
+describe("批量更新 Hook useBatchUpdate 打开更新详情", () => {
+  it("打开过程中标记该行为进行中，重复点击不再重复发起", async () => {
+    let resolveOpen!: (value: boolean) => void;
+    h.requestOpenUpdatePageByUUID.mockImplementationOnce(
+      () => new Promise<boolean>((resolve) => (resolveOpen = resolve))
+    );
+    const { result } = await setup([mkRecord("a")]);
+
+    await act(async () => {
+      void result.current.onOpen("a");
+    });
+    expect(result.current.opening.has("a")).toBe(true);
+
+    await act(async () => {
+      void result.current.onOpen("a");
+    });
+    expect(h.requestOpenUpdatePageByUUID).toHaveBeenCalledTimes(1);
+
+    await act(async () => resolveOpen(true));
+
+    expect(result.current.opening.has("a")).toBe(false);
+  });
+
+  it("打开失败时提示用户并解除进行中标记", async () => {
+    h.requestOpenUpdatePageByUUID.mockResolvedValueOnce(false);
+    const { result } = await setup([mkRecord("a")]);
+
+    await act(async () => result.current.onOpen("a"));
+
+    expect(h.toastError).toHaveBeenCalledWith(t("install:updatepage.open_failed"));
+    expect(result.current.opening.has("a")).toBe(false);
+  });
+
+  it("请求本身报错时同样给出失败反馈而不是一直转圈", async () => {
+    h.requestOpenUpdatePageByUUID.mockRejectedValueOnce(new Error("boom"));
+    const { result } = await setup([mkRecord("a")]);
+
+    await act(async () => result.current.onOpen("a"));
+
+    expect(h.toastError).toHaveBeenCalledWith(expect.stringContaining(t("install:updatepage.open_failed")));
+    expect(h.toastError.mock.calls[0][0]).toContain("boom");
+    expect(result.current.opening.has("a")).toBe(false);
+  });
+
+  it("点开更新详情算显式操作，停掉自动关闭倒计时", async () => {
+    window.history.replaceState({}, "", "/?autoclose=30");
+    const { result } = await setup([mkRecord("a")]);
+
+    await act(async () => result.current.onOpen("a"));
+
+    expect(result.current.autoClose).toBeNull();
+    expect(result.current.autoCloseCancelled).toBe(true);
+    window.history.replaceState({}, "", "/");
+  });
+});
diff --git a/src/pages/batchupdate/hooks.ts b/src/pages/batchupdate/hooks.ts
index b2c986f23..3ae1bacdd 100644
--- a/src/pages/batchupdate/hooks.ts
+++ b/src/pages/batchupdate/hooks.ts
@@ -66,6 +66,9 @@ export function useBatchUpdate(): BatchUpdateViewProps {
   const [recordExpired, setRecordExpired] = useState(false);
   // 已播完退场动画、等待下一次全量刷新兜底的行
   const [dismissed, setDismissed] = useState<Set<string>>(() => new Set());
+  // 正在打开更新详情页的行；ref 与 state 同步，前者用于同步挡住连点，后者驱动行内转圈
+  const [opening, setOpening] = useState<Set<string>>(() => new Set());
+  const openingRef = useRef<Set<string>>(new Set());
 
   const loadingRef = useRef(false);
   // 标记本次检查由用户主动发起（点击「检查更新」），用于在检查完成后弹出反馈 toast
@@ -128,6 +131,12 @@ export function useBatchUpdate(): BatchUpdateViewProps {
     applyReload(deferred.finished);
   }, [applyReload]);
 
+  const markOpening = useCallback((uuid: string, busy: boolean) => {
+    if (busy) openingRef.current.add(uuid);
+    else openingRef.current.delete(uuid);
+    setOpening(new Set(openingRef.current));
+  }, []);
+
   const commitRows = useCallback((mutate: (draft: Record<string, RowState>) => void) => {
     const next = { ...rowStatesRef.current };
     mutate(next);
@@ -345,9 +354,28 @@ export function useBatchUpdate(): BatchUpdateViewProps {
     });
   }, [updates, cancelAutoClose]);
 
-  const onOpen = useCallback((uuid: string) => {
-    void requestOpenUpdatePageByUUID(uuid);
-  }, []);
+  /**
+   * 打开更新详情：服务端要先备好待安装代码才会开出安装页，这段等待期间必须挡住重复点击，
+   * 否则连点几下就会开出好几个安装标签页。
+   */
+  const onOpen = useCallback(
+    (uuid: string) => {
+      if (openingRef.current.has(uuid)) return;
+      cancelAutoClose();
+      markOpening(uuid, true);
+      void (async () => {
+        try {
+          if (!(await requestOpenUpdatePageByUUID(uuid))) notify.error(t("install:updatepage.open_failed"));
+        } catch (e) {
+          // 消息通道本身失败（Service Worker 未就绪等）也要落到同一条反馈上，不能让这行一直转圈
+          notify.error(`${t("install:updatepage.open_failed")}: ${e instanceof Error ? e.message : String(e)}`);
+        } finally {
+          markOpening(uuid, false);
+        }
+      })();
+    },
+    [cancelAutoClose, markOpening, t]
+  );
 
   const onOpenScriptList = useCallback(() => {
     void openInCurrentTab(SCRIPT_LIST_URL);
@@ -364,6 +392,7 @@ export function useBatchUpdate(): BatchUpdateViewProps {
     autoClose: autoCloseState.seconds,
     autoCloseCancelled: autoCloseState.cancelled,
     rowStates,
+    opening,
     batchProgress,
     recordExpired,
     onToggle,
diff --git a/src/pages/batchupdate/mobile.tsx b/src/pages/batchupdate/mobile.tsx
index 4eafad617..8acb641ff 100644
--- a/src/pages/batchupdate/mobile.tsx
+++ b/src/pages/batchupdate/mobile.tsx
@@ -57,6 +57,7 @@ function MobileCard({
   item,
   state,
   selected,
+  opening,
   onToggle,
   onOpen,
   onUpdate,
@@ -67,6 +68,7 @@ function MobileCard({
   item: UpdateItem;
   state?: RowState;
   selected?: boolean;
+  opening?: boolean;
   onToggle?: (uuid: string) => void;
   onOpen: (uuid: string) => void;
   onUpdate?: (item: UpdateItem) => void;
@@ -91,7 +93,7 @@ function MobileCard({
         )}
         <span className={cn("flex min-w-0 flex-1 items-center gap-2.5", dim)}>
           <ScriptAvatar name={item.name} iconUrl={item.iconUrl} />
-          <ScriptName name={item.name} onClick={() => onOpen(item.uuid)} />
+          <ScriptName name={item.name} loading={opening} onClick={() => onOpen(item.uuid)} />
         </span>
         <StatusBadge enabled={item.enabled} />
       </div>
@@ -172,6 +174,7 @@ function MobileIgnored({ view }: { view: BatchUpdateViewProps }) {
             item={item}
             state={view.rowStates[item.uuid]}
             ignoredCard
+            opening={view.opening.has(item.uuid)}
             onOpen={view.onOpen}
             onRestore={view.onRestore}
           />
@@ -271,6 +274,7 @@ export function MobileView({ view }: { view: BatchUpdateViewProps }) {
                 item={item}
                 state={view.rowStates[item.uuid]}
                 selected={view.selected.has(item.uuid)}
+                opening={view.opening.has(item.uuid)}
                 onToggle={view.onToggle}
                 onOpen={view.onOpen}
                 onUpdate={view.onUpdate}