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OpenAI Adds Extension Support to ChatGPT Desktop Browser as Agentic Browsing Moves Into the App

September 18, 2026 at 13:24 EDT

AI Agents
Software Dev & Coding

OpenAI's ChatGPT desktop app now presents its built-in browser as a fuller agent workspace, with support for extensions, richer sign-in, autofill, password management, downloads and navigation on macOS and Windows. The change gives developers and power users a more browser-like surface inside ChatGPT while preserving a separate path for using an existing Chrome profile through OpenAI's official extension.

September 2026 · OpenAI

ChatGPT turns its browser into an agent workspace

The desktop app's built-in browser now supports richer browsing features including extensions, while the official browser extension connects ChatGPT to existing Chrome-family profiles.

external browsers support tab mentions and control

of those browsers also support side chat

users listed for the official extension

2.9/5

public Chrome Web Store rating

Browser coverage, drawn to scale

All supported external browsers can be controlled from the desktop app; side chat reaches four of the five.

5Control

4Side chat

Why builders care

The same workspace can cover signed-in sites, local development pages, multi-tab context, downloads and CDP-assisted debugging.

Why admins hesitate

Full CDP access and broad browser permissions raise risk, so approvals, allowlists and managed controls remain central.

The workflow shift

Open page→Grant access→Inspect or act→Review result

The browser becomes a controlled work surface, not just a place to read pages.

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