Session & environment instruments

Use them responsibly: they exist for testing your own sites and automating flows you're entitled to automate — respect the terms of the sites you work with.

These instruments control the environment a flow runs in: the browser properties a page can read, how the pointer moves, and the headers each request carries. They pair with the 🎲 human-delay toggle, which adds random pauses between steps.

Stealth#

Normalizes the browser properties that identify an automated session, before the page loads:

• navigator.webdriver is hidden; Playwright's own markers are removed.
• Plugins, languages, platform, vendor, hardware concurrency and device memory report browser-typical values.
• The WebGL vendor and renderer are overridden (configurable).
• Optionally, a custom user agent and timezone.

Place it early — ideally the first step, before any Navigate. Some sites will still identify the session as automated regardless of these settings.

Set Headers#

Sets extra HTTP headers on every request the browser session makes from then on — a JSON object:

{ "Accept-Language": "en-US,en;q=0.9" }

Useful for language pinning, custom User-Agent strings, or API keys a site expects. For a single request, use Fetch with its own headers instead.

Move Mouse#

Moves the pointer like a person would:

• With a selector — hover over that element (triggers hover menus, tooltips, lazy-loading).
• With X / Y coordinates — move to a viewport position.

Also the honest way to open hover-only menus before clicking something inside them.