--- sidebar_label: BrowserFetcher --- # BrowserFetcher class BrowserFetcher can download and manage different versions of Chromium and Firefox. **Signature:** ```typescript export declare class BrowserFetcher ``` ## Remarks BrowserFetcher is not designed to work concurrently with other instances of BrowserFetcher that share the same downloads directory. ## Example An example of using BrowserFetcher to download a specific version of Chromium and running Puppeteer against it: ```ts const browserFetcher = new BrowserFetcher(); const revisionInfo = await browserFetcher.download('533271'); const browser = await puppeteer.launch({ executablePath: revisionInfo.executablePath, }); ``` ## Constructors | Constructor | Modifiers | Description | | --------------------------------------------------------------------- | --------- | --------------------------------------------------- | | [(constructor)(options)](./puppeteer.browserfetcher._constructor_.md) | | Constructs a browser fetcher for the given options. | ## Methods | Method | Modifiers | Description | | ------------------------------------------------------------------------------ | --------- | --------------------------------------------------------------- | | [canDownload(revision)](./puppeteer.browserfetcher.candownload.md) | | Initiates a HEAD request to check if the revision is available. | | [download(revision, progressCallback)](./puppeteer.browserfetcher.download.md) | | Initiates a GET request to download the revision from the host. | | [host()](./puppeteer.browserfetcher.host.md) | | | | [localRevisions()](./puppeteer.browserfetcher.localrevisions.md) | | | | [platform()](./puppeteer.browserfetcher.platform.md) | | | | [product()](./puppeteer.browserfetcher.product.md) | | | | [remove(revision)](./puppeteer.browserfetcher.remove.md) | | | | [revisionInfo(revision)](./puppeteer.browserfetcher.revisioninfo.md) | | |