# The browser

Nock's **Web** tab opens a separate browser surface. It is not a view of your existing Safari or Chrome tabs. Sign-ins in your everyday browser do not automatically appear here.

## Open a page

1. Open the notch and choose **Web**.
2. Enter a secure website or a local development preview address.
3. Select **Open page**.
4. Choose **Mobile preview** or **Desktop preview** for the layout you want to inspect.

Use **PiP** to float the page separately and **Dock** to bring it back. **Expand** gives a docked page more room. **Hide** changes visibility; it does not mean an ongoing browser task has stopped.

## Work with the agent

Ask a specific question, such as “Read the headings on this page” or “Find the contact link.” The browser tools can read, click, type into supported fields, navigate, scroll, and take a page screenshot. If the page changes, the agent needs a fresh read before acting on its elements.

Enter passwords yourself. The typing tool does not fill password fields. Check destinations and review important submissions rather than assuming a successful click completed the intended transaction.

## Restrictions

The current browser accepts HTTPS sites and local development addresses. It blocks ordinary remote HTTP addresses. Downloads and site requests for camera, microphone, location, and notifications are disabled. A mobile preview is a browser layout simulation, not a physical-phone compatibility test.

Cookies persist in Nock's browser profile. Glass Canvas web cards use that same profile. Page content and screenshots read by the agent may be sent to its model; avoid opening sensitive material you do not want included.

## A page will not open

Check the address, network connection, certificate, and whether a local server is actually running. Try opening the address in your normal browser to distinguish a site problem from Nock's restrictions. Do not disable certificate checks as a workaround.

See [Glass Canvas](/nock/glass-canvas) and [Privacy](/nock/privacy).