OpenAI Codex Chrome Extension Now Works on macOS and Windows

OpenAI Codex launches a new Chrome extension for macOS and Windows, enabling parallel background tasks and signed-in session usage starting May 7, 2026.

OpenAI Codex Chrome Extension Now Works on macOS and Windows

OpenAI has released a new integration for its Codex AI agent, allowing it to operate directly within the Google Chrome browser. This update introduces a dedicated Chrome extension that enables the agent to interact with web applications using the user's existing signed-in sessions. The feature aims to streamline tasks that require navigating multiple websites or interacting with complex web interfaces.

Release limited to regions outside European Union and United Kingdom

The extension supports both macOS and operating systems. It allows Codex to work in parallel across multiple browser tabs without taking over the browser interface. Users can organize these background tasks using Chrome's tab grouping feature. The agent can perform actions such as data entry, checking dashboards, navigating structured pages, and debugging web applications.

The Chrome extension is available for download starting May 7, 2026. This release is currently limited to regions outside of the European Union and the United Kingdom. OpenAI has indicated that support for these excluded regions will be added in the near future. No pricing information has been provided for this software update.

This integration represents a shift toward more autonomous AI agents that can handle multi-step workflows across different web services. By leveraging signed-in sessions, Codex can execute tasks that previously required manual user intervention. The ability to run these processes in the background without disrupting the user's active browsing session is a key technical improvement.

OpenAI has not confirmed the specific timeline for the EU and UK rollout. The company describes the new functionality as an improvement in how Codex handles apps and sites within Chrome. The release marks a significant expansion of the agent's capabilities beyond standalone applications.

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