puppeteer/docs/browsers-api/browsers.installoptions.md
2023-05-15 09:51:42 +00:00

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---
sidebar_label: InstallOptions
---
# InstallOptions interface
#### Signature:
```typescript
export interface InstallOptions
```
## Properties
| Property | Modifiers | Type | Description | Default |
| ------------------------ | --------------------- | -------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| baseUrl | <code>optional</code> | string | Determines the host that will be used for downloading. | <p>Either</p><p>- https://edgedl.me.gvt1.com/edgedl/chrome/chrome-for-testing or - https://archive.mozilla.org/pub/firefox/nightly/latest-mozilla-central</p> |
| browser | | [Browser](./browsers.browser.md) | Determines which browser to install. | |
| buildId | | string | Determines which buildId to download. BuildId should uniquely identify binaries and they are used for caching. | |
| cacheDir | | string | Determines the path to download browsers to. | |
| downloadProgressCallback | <code>optional</code> | (downloadedBytes: number, totalBytes: number) =&gt; void | Provides information about the progress of the download. | |
| platform | <code>optional</code> | [BrowserPlatform](./browsers.browserplatform.md) | Determines which platform the browser will be suited for. | **Auto-detected.** |
| unpack | <code>optional</code> | boolean | Whether to unpack and install browser archives. | <code>true</code> |