OpenAI's Codex can now multitask inside Chrome

If you've ever tested an AI "computer use" agent, you know the biggest buzzkill: it completely hijacks your screen. Your mouse starts twitching on its own, and you're stuck waiting, unable to touch your keyboard.

OpenAI just fixed that headache for browser tasks. On May 7, the company announced that its Codex AI coding agent can now run directly inside Google Chrome across both macOS and Windows.

Multitasking in the background

Instead of taking over your active display like existing computer-use setups, the new Codex Chrome extension works silently in the background across multiple tabs.

Even better, it automatically organizes its work into Chrome tab groups matched to each Codex thread. That means while you're working in your main window, Codex can crunch web data in its own neat cluster of tabs.

Because it lives in your actual browser, Codex takes advantage of your existing signed-in sessions. You don't have to hand over raw credentials for sites like LinkedIn, Salesforce, or Gmail; it simply taps into where you're already logged in.

According to OpenAI, it can navigate structured web pages, push through complex data-entry workflows, monitor dashboards, and debug browser flows.

Smart tool picking and prompt routing

Setting it up is pretty straightforward: install the extension via the Plugins tab in the Codex app or through the Chrome Web Store, approve permissions, and you're set.

Once connected, Codex automatically decides which tool fits the job. For local dev servers and localhost previews, it sticks with its in-app browser; for authenticated enterprise apps, it switches to Chrome.

You can also force the hand with mentions. Type something like "@Chrome open Salesforce and update the account from these call notes," and Codex will wake up Chrome even if it isn't running.

The feature rolled out globally on macOS and Windows, though OpenAI notes users in the EU and UK will have to wait a bit longer due to local rollouts.

Why it matters

This is a massive usability upgrade for anyone handling repetitive browser chores. If your day involves copying info between call transcripts and CRMs, it's worth testing immediately.

We think OpenAI took a really smart pragmatic turn here. While competitors are fixated on high-friction screen takeover with visual models, integrating via an extension lets AI work in parallel without interrupting human workflow.

The tradeoff, however, is safety. Operating inside active, authenticated enterprise sessions means if Codex misinterprets an instruction—or runs into malicious web injections—it acts with your real identity and permissions. Power users will love the speed, but security teams might lose some sleep.