OpenAI debuts a Codex plugin for Chrome

Source: Engadget

Overview

OpenAI is expanding its AI coding tools with a new Chrome extension for the Codex platform. The extension adds browser‑based capabilities such as testing web apps, collecting context from open tabs, and using Chrome DevTools in parallel while the user works on other tasks. This makes Codex more accessible to casual users and professionals beyond developers, since many computing tasks are performed in browsers.

New Chrome Plugin Features

• Web app testing directly from the browser.
• Context gathering across multiple open tabs.
• Parallel use of Chrome DevTools without interrupting other work.
• Organized results that stay within the browser environment.

“Codex can now take on more of your browser dev work.” – OpenAI Developers

OpenAI Developers on X (May 7 2026)

Background

• OpenAI launched Codex as a macOS app in February 2026: Engadget article.
• Additional features were announced in April 2026: Engadget article.

The company eventually plans to combine Codex with the ChatGPT chatbot and its own web browser, Atlas, into a single integrated app. The Chrome extension is compatible with both Windows and macOS.