OpenAI just gave Codex full access to Chrome’s DevTools Protocol — the same low-level interface that powers your browser’s Network tab, console, and JavaScript profiler. That means your AI coding agent can now read raw network traffic, inspect the DOM directly, catch runtime errors in real time, and profile page performance without you touching DevTools manually. The feature is called Developer mode, it shipped this week as part of a broader Codex update, and it makes browser use up to 2x faster. It is off by default. Keep reading before you enable it. What CDP Developer Mode Actually Gives Codex […]
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