OpenAI has released a Chrome extension for Codex, turning its AI coding agent into something that can reach beyond the code editor and into your browser. Once installed, Codex can directly interact with websites and apps you're already logged into — handling repetitive browser work like navigating structured pages or entering complex data.
The secret sauce? Codex writes its own code to execute these page interactions. It works in a separate group of background tabs, so it doesn't hijack the tabs you're currently using. And it can run multiple tasks across tabs in parallel. If a task requires both the browser and a plugin, Codex decides on the fly which tool to use for each step. You can control which websites Codex has access to in the settings.
To use it, first install the Chrome plugin inside the Codex app, then grab the extension from the Chrome Web Store. The update also brings a built-in browser feature to the Codex app that lets you interact with local dev servers and file pages — handy for clicking through UIs, reproducing visual bugs, or verifying local fixes.
For now, the extension is available everywhere except the EU and UK. Support for those regions is coming later.