Skip to main content
Browser-act uses browser types to represent different identity and runtime needs.

Quick mode picker

Use the browser mode that matches the identity requirement of the task.

chrome: reuse local login state

chrome browsers run in Browser-act-managed Chromium instances. They can import state from a local Chrome profile while staying isolated from the user’s daily browser after import.

Profile import

List local profiles:
Create a browser from a discovered profile:
Import state into an existing browser:
If Chrome must be restarted during import:
[!WARNING] Profile import is a snapshot. Later changes in the source Chrome profile are not automatically synchronized.

What profile import includes

Profile import is useful when a site requires an existing login but the agent should operate in an isolated browser.

chrome-direct: control current Chrome

chrome-direct controls the user’s current Chrome instance through CDP. It is useful when automation depends on local extensions, hardware-backed SSO, certificates, or state that cannot be copied safely. Trade-offs:
  • only one chrome-direct browser is allowed
  • it operates on the live user browser
  • it is not intended for headed mode switching
  • it is best for short tasks that need the exact local Chrome environment

Profile import vs. CDP direct

stealth: privacy mode

Privacy mode starts each session with a fresh fingerprint and empty profile:
Use it for protected public data, one-off collection, and tasks where persistent identity is a liability. Trade-offs:
  • no login state is preserved
  • an API key is required
  • each session behaves like a new identity

stealth: fixed identity

Fixed-identity stealth browsers keep a stable fingerprint and proxy:
Use this for multi-account work where each account needs a consistent browser identity.
[!NOTE] Hosted static IP support may depend on account configuration and availability. Use your own fixed proxy when a stable identity is required.

Choose by scenario

Logged-in work

Use chrome with profile import when the site needs reusable local login state.

Live local Chrome

Use chrome-direct when the task depends on extensions, certificates, hardware SSO, or live cookies.

Protected public pages

Use stealth privacy mode or stealth-extract when there is no login and a fresh identity is safer.

Multiple accounts

Use stealth fixed identity with separate proxies when each account needs a stable browser identity.

Browser fields

Learn more

Anti-detection & Blocking

Understand stealth mode, proxies, CAPTCHA handling, and human handoff.

Concurrency & Isolation

Run multiple browsers and sessions without leaking state between tasks.

Designed for Agents

Learn how agents choose browsers by semantic desc fields.