Playwright MCP + Chrome Extension: Testing with Logged-In Profiles

Before the Playwright MCP Browser Extension, using a logged-in state with the Playwright MCP server often meant giving your login credentials to the LLM. 😬 Now, with the extension, you can securely reuse your existing browser profile — no passwords required. The LLM can run tests against a session that’s already authenticated. In this video, I’ll show you: ✅ How the Browser extension integrates with the Playwright MCP server ✅ How to connect to your own browser profile for a logged-in state ✅ How to use agent mode with Playwright MCP to access the logged in page and make some changes 📖 Learn more: https://github.com/microsoft/playwright-mcp/blob/main/extension/README.md blog: https://dev.to/debs_obrien/testing-in-a-logged-in-state-with-the-playwright-mcp-browser-extension-4cmg This makes MCP testing both safer and easier for automation engineers. Give it a try and let me know your thoughts in the comments.

Channel: Debbie O'BrienGenerated by halstonDuration: 6mPublished Aug 21, 2025
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Video Chapters

Original Output

0:00 Unlocking effortless logged-in testing with Playwright MCP!
0:20 Problem Identified: Our first attempt at GitHub login falls short.
0:56 Solution in sight: Discovering the essential browser extension.
1:30 Your download guide: Securing the Playwright MCP extension.
2:05 Easy peasy: Enabling the extension for action.
2:55 The critical link: Configuring your Playwright MCP server.
3:40 Victory! Seamlessly logged into GitHub this time.
4:30 Real power demonstrated: AI agent takes control & changes settings!
5:45 Final act: Crafting tests for complex logged-in scenarios.

Timestamps by StampBot 🤖