diff --git a/src/browser/pw-session.create-page.navigation-guard.test.ts b/src/browser/pw-session.create-page.navigation-guard.test.ts
index 088cbeaa721..fc3f249b952 100644
--- a/src/browser/pw-session.create-page.navigation-guard.test.ts
+++ b/src/browser/pw-session.create-page.navigation-guard.test.ts
@@ -1,19 +1,7 @@
 import { afterEach, describe, expect, it, vi } from "vitest";
 import { InvalidBrowserNavigationUrlError } from "./navigation-guard.js";
 import { closePlaywrightBrowserConnection, createPageViaPlaywright } from "./pw-session.js";
-
-const connectOverCdpMock = vi.fn();
-const getChromeWebSocketUrlMock = vi.fn();
-
-vi.mock("playwright-core", () => ({
-  chromium: {
-    connectOverCDP: (...args: unknown[]) => connectOverCdpMock(...args),
-  },
-}));
-
-vi.mock("./chrome.js", () => ({
-  getChromeWebSocketUrl: (...args: unknown[]) => getChromeWebSocketUrlMock(...args),
-}));
+import { connectOverCdpMock, getChromeWebSocketUrlMock } from "./pw-session.mock-setup.js";
 
 function installBrowserMocks() {
   const pageOn = vi.fn();
diff --git a/src/browser/pw-session.get-page-for-targetid.extension-fallback.test.ts b/src/browser/pw-session.get-page-for-targetid.extension-fallback.test.ts
index bfb429ba45e..08edc7dd171 100644
--- a/src/browser/pw-session.get-page-for-targetid.extension-fallback.test.ts
+++ b/src/browser/pw-session.get-page-for-targetid.extension-fallback.test.ts
@@ -1,18 +1,6 @@
 import { describe, expect, it, vi } from "vitest";
 import { closePlaywrightBrowserConnection, getPageForTargetId } from "./pw-session.js";
-
-const connectOverCdpMock = vi.fn();
-const getChromeWebSocketUrlMock = vi.fn();
-
-vi.mock("playwright-core", () => ({
-  chromium: {
-    connectOverCDP: (...args: unknown[]) => connectOverCdpMock(...args),
-  },
-}));
-
-vi.mock("./chrome.js", () => ({
-  getChromeWebSocketUrl: (...args: unknown[]) => getChromeWebSocketUrlMock(...args),
-}));
+import { connectOverCdpMock, getChromeWebSocketUrlMock } from "./pw-session.mock-setup.js";
 
 describe("pw-session getPageForTargetId", () => {
   it("falls back to the only page when CDP session attachment is blocked (extension relays)", async () => {
diff --git a/src/browser/pw-session.mock-setup.ts b/src/browser/pw-session.mock-setup.ts
new file mode 100644
index 00000000000..e62d51c9d14
--- /dev/null
+++ b/src/browser/pw-session.mock-setup.ts
@@ -0,0 +1,14 @@
+import { vi } from "vitest";
+
+export const connectOverCdpMock = vi.fn();
+export const getChromeWebSocketUrlMock = vi.fn();
+
+vi.mock("playwright-core", () => ({
+  chromium: {
+    connectOverCDP: (...args: unknown[]) => connectOverCdpMock(...args),
+  },
+}));
+
+vi.mock("./chrome.js", () => ({
+  getChromeWebSocketUrl: (...args: unknown[]) => getChromeWebSocketUrlMock(...args),
+}));