puppeteer/website/versioned_docs/version-10.0.0/puppeteer.launch.md

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[Home](./index.md) &gt; [puppeteer](./puppeteer.md) &gt; [launch](./puppeteer.launch.md)

## launch() function

Launches puppeteer and launches a browser instance with given arguments and options when specified.

<b>Signature:</b>

```typescript
export declare function launch(options?: LaunchOptions & BrowserLaunchArgumentOptions & BrowserConnectOptions & {
    product?: Product;
    extraPrefsFirefox?: Record<string, unknown>;
}): Promise<Browser>;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  options | [LaunchOptions](./puppeteer.launchoptions.md) &amp; [BrowserLaunchArgumentOptions](./puppeteer.browserlaunchargumentoptions.md) &amp; [BrowserConnectOptions](./puppeteer.browserconnectoptions.md) &amp; { product?: [Product](./puppeteer.product.md); extraPrefsFirefox?: Record&lt;string, unknown&gt;; } | Set of configurable options to set on the browser. |

<b>Returns:</b>

Promise&lt;[Browser](./puppeteer.browser.md)&gt;

Promise which resolves to browser instance.

## Remarks