diff --git a/extensions/browser/src/browser/server-context.tab-selection-state.test.ts b/extensions/browser/src/browser/server-context.tab-selection-state.test.ts
index 0331625d47f..2ea550fa203 100644
--- a/extensions/browser/src/browser/server-context.tab-selection-state.test.ts
+++ b/extensions/browser/src/browser/server-context.tab-selection-state.test.ts
@@ -6,6 +6,7 @@ vi.hoisted(() => {
 });
 
 import "./server-context.chrome-test-harness.js";
+import { CDP_JSON_NEW_TIMEOUT_MS } from "./cdp-timeouts.js";
 import * as cdpHelpersModule from "./cdp.helpers.js";
 import * as cdpModule from "./cdp.js";
 import { InvalidBrowserNavigationUrlError } from "./navigation-guard.js";
@@ -36,13 +37,14 @@ function seedRunningProfileState(
 
 async function expectOldManagedTabClose(fetchMock: ReturnType<typeof vi.fn>): Promise<void> {
   await vi.waitFor(() => {
-    expect(fetchMock).toHaveBeenCalledWith(
-      expect.stringContaining("/json/close/OLD1"),
-      expect.any(Object),
-    );
+    expect(fetchCallUrls(fetchMock).some((url) => url.includes("/json/close/OLD1"))).toBe(true);
   });
 }
 
+function fetchCallUrls(fetchMock: ReturnType<typeof vi.fn>): string[] {
+  return fetchMock.mock.calls.map(([url]) => String(url));
+}
+
 function createOldTabCleanupFetchMock(
   existingTabs: ReturnType<typeof makeManagedTabsWithNew>,
   params?: { rejectNewTabClose?: boolean },
@@ -192,10 +194,7 @@ describe("browser server-context tab selection state", () => {
     const opened = await openManagedTabWithRunningProfile({ fetchMock });
     expect(opened.targetId).toBe("NEW");
     await expectOldManagedTabClose(fetchMock);
-    expect(fetchMock).not.toHaveBeenCalledWith(
-      expect.stringContaining("/json/close/NEW"),
-      expect.anything(),
-    );
+    expect(fetchCallUrls(fetchMock).some((url) => url.includes("/json/close/NEW"))).toBe(false);
   });
 
   it("does not fail tab open when managed-tab cleanup list fails", async () => {
@@ -253,10 +252,7 @@ describe("browser server-context tab selection state", () => {
 
     const opened = await openclaw.openTab("http://127.0.0.1:3009");
     expect(opened.targetId).toBe("NEW");
-    expect(fetchMock).not.toHaveBeenCalledWith(
-      expect.stringContaining("/json/close/"),
-      expect.anything(),
-    );
+    expect(fetchCallUrls(fetchMock).some((url) => url.includes("/json/close/"))).toBe(false);
   });
 
   it("does not block openTab on slow best-effort cleanup closes", async () => {
@@ -321,19 +317,18 @@ describe("browser server-context tab selection state", () => {
 
     const opened = await openclaw.openTab("https://example.com");
     expect(opened.targetId).toBe("NEW");
-    expect(fetchJson).toHaveBeenNthCalledWith(
-      1,
-      expect.stringContaining("/json/new"),
-      expect.any(Number),
+    const jsonNewEndpoint = "http://127.0.0.1:18800/json/new?https%3A%2F%2Fexample.com";
+    expect(fetchJson.mock.calls[0]).toEqual([
+      jsonNewEndpoint,
+      CDP_JSON_NEW_TIMEOUT_MS,
       { method: "PUT" },
       undefined,
-    );
-    expect(fetchJson).toHaveBeenNthCalledWith(
-      2,
-      expect.stringContaining("/json/new"),
-      expect.any(Number),
+    ]);
+    expect(fetchJson.mock.calls[1]).toEqual([
+      jsonNewEndpoint,
+      CDP_JSON_NEW_TIMEOUT_MS,
       undefined,
       undefined,
-    );
+    ]);
   });
 });