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<title data-rh="true">BrowserFetcher class | Puppeteer</title><meta data-rh="true" name="twitter:card" content="summary_large_image"><meta data-rh="true" property="og:url" content="https://puppeteer.github.io/puppeteer/api/puppeteer.browserfetcher"><meta data-rh="true" name="docusaurus_locale" content="en"><meta data-rh="true" name="docsearch:language" content="en"><meta data-rh="true" name="docusaurus_version" content="current"><meta data-rh="true" name="docusaurus_tag" content="docs-default-current"><meta data-rh="true" name="docsearch:version" content="current"><meta data-rh="true" name="docsearch:docusaurus_tag" content="docs-default-current"><meta data-rh="true" property="og:title" content="BrowserFetcher class | Puppeteer"><meta data-rh="true" name="description" content="BrowserFetcher can download and manage different versions of Chromium and Firefox."><meta data-rh="true" property="og:description" content="BrowserFetcher can download and manage different versions of Chromium and Firefox."><link data-rh="true" rel="icon" href="/puppeteer/img/favicon.ico"><link data-rh="true" rel="canonical" href="https://puppeteer.github.io/puppeteer/api/puppeteer.browserfetcher"><link data-rh="true" rel="alternate" href="https://puppeteer.github.io/puppeteer/api/puppeteer.browserfetcher" hreflang="en"><link data-rh="true" rel="alternate" href="https://puppeteer.github.io/puppeteer/api/puppeteer.browserfetcher" hreflang="x-default"><link rel="stylesheet" href="/puppeteer/assets/css/styles.d5636e50.css">
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class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist" aria-expanded="false" tabindex="0" href="/puppeteer/api/puppeteer.puppeteer">puppeteer</a><button aria-label="Toggle the collapsible sidebar category 'puppeteer'" type="button" class="clean-btn menu__caret"></button></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist" aria-expanded="false" tabindex="0" href="/puppeteer/api/puppeteer.puppeteererrors">puppeteererrors</a><button aria-label="Toggle the collapsible sidebar category 'puppeteererrors'" type="button" class="clean-btn menu__caret"></button></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist" aria-expanded="false" tabindex="0" href="/puppeteer/api/puppeteer.puppeteerlaunchoptions">puppeteerlaunchoptions</a><button aria-label="Toggle the collapsible sidebar category 'puppeteerlaunchoptions'" type="button" class="clean-btn menu__caret"></button></div></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link" tabindex="0" href="/puppeteer/api/puppeteer.puppeteerlifecycleevent">puppeteerlifecycleevent</a></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist" aria-expanded="false" tabindex="0" href="/puppeteer/api/puppeteer.puppeteernode">puppeteernode</a><button aria-label="Toggle the collapsible sidebar category 'puppeteernode'" type="button" class="clean-btn menu__caret"></button></div></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link" tabindex="0" href="/puppeteer/api/puppeteer.puppeteernodelaunchoptions">puppeteernodelaunchoptions</a></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link" tabindex="0" href="/puppeteer/api/puppeteer.registercustomqueryhandler">registercustomqueryhandler</a></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist" aria-expanded="false" tabindex="0" href="/puppeteer/api/puppeteer.remoteaddress">remoteaddress</a><button aria-label="Toggle the collapsible sidebar category 'remoteaddress'" type="button" class="clean-btn menu__caret"></button></div></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link" tabindex="0" href="/puppeteer/api/puppeteer.resourcetype">resourcetype</a></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist" aria-expanded="false" tabindex="0" href="/puppeteer/api/puppeteer.responseforrequest">responseforrequest</a><button aria-label="Toggle the collapsible sidebar category 'responseforrequest'" type="button" class="clean-btn menu__caret"></button></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist" aria-expanded="false" tabindex="0" href="/puppeteer/api/puppeteer.screenshotclip">screenshotclip</a><button aria-label="Toggle the collapsible sidebar category 'screenshotclip'" type="button" class="clean-btn menu__caret"></button></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist" aria-expanded="false" tabindex="0" href="/puppeteer/api/puppeteer.screenshotoptions">screenshotoptions</a><button aria-label="Toggle the collapsible sidebar category 'screenshotoptions'" type="button" class="clean-btn menu__caret"></button></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist" aria-expanded="false" tabindex="0" href="/puppeteer/api/puppeteer.securitydetails">securitydetails</a><button aria-label="Toggle the collapsible sidebar category 'securitydetails'" type="button" class="clean-btn menu__caret"></button></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist" aria-expanded="false" tabindex="0" href="/puppeteer/api/puppeteer.serializedaxnode">serializedaxnode</a><button aria-label="Toggle the collapsible sidebar category 'serializedaxnode'" type="button" class="clean-btn menu__caret"></button></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist" aria-expanded="false" tabindex="0" href="/puppeteer/api/puppeteer.snapshotoptions">snapshotoptions</a><button aria-label="Toggle the collapsible sidebar category 'snapshotoptions'" type="button" class="clean-btn menu__caret"></button></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist" aria-expanded="false" tabindex="0" href="/puppeteer/api/puppeteer.target">target</a><button aria-label="Toggle the collapsible sidebar category 'target'" type="button" class="clean-btn menu__caret"></button></div></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link" tabindex="0" href="/puppeteer/api/puppeteer.targetfiltercallback">targetfiltercallback</a></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link" tabindex="0" href="/puppeteer/api/puppeteer.timeouterror">timeouterror</a></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist" aria-expanded="false" tabindex="0" href="/puppeteer/api/puppeteer.touchscreen">touchscreen</a><button aria-label="Toggle the collapsible sidebar category 'touchscreen'" type="button" class="clean-btn menu__caret"></button></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist" aria-expanded="false" tabindex="0" href="/puppeteer/api/puppeteer.tracing">tracing</a><button aria-label="Toggle the collapsible sidebar category 'tracing'" type="button" class="clean-btn menu__caret"></button></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist" aria-expanded="false" tabindex="0" href="/puppeteer/api/puppeteer.tracingoptions">tracingoptions</a><button aria-label="Toggle the collapsible sidebar category 'tracingoptions'" type="button" class="clean-btn menu__caret"></button></div></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class="menu__link" tabindex="0" href="/puppeteer/api/puppeteer.unregistercustomqueryhandler">unregistercustomqueryhandler</a></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist" aria-expanded="false" tabindex="0" href="/puppeteer/api/puppeteer.viewport">viewport</a><button aria-label="Toggle the collapsible sidebar category 'viewport'" type="button" class="clean-btn menu__caret"></button></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist" aria-expanded="false" tabindex="0" href="/puppeteer/api/puppeteer.waitforoptions">waitforoptions</a><button aria-label="Toggle the collapsible sidebar category 'waitforoptions'" type="button" class="clean-btn menu__caret"></button></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist" aria-expanded="false" tabindex="0" href="/puppeteer/api/puppeteer.waitforselectoroptions">waitforselectoroptions</a><button aria-label="Toggle the collapsible sidebar category 'waitforselectoroptions'" type="button" class="clean-btn menu__caret"></button></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist" aria-expanded="false" tabindex="0" href="/puppeteer/api/puppeteer.waitfortargetoptions">waitfortargetoptions</a><button aria-label="Toggle the collapsible sidebar category 'waitfortargetoptions'" type="button" class="clean-btn menu__caret"></button></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist" aria-expanded="false" tabindex="0" href="/puppeteer/api/puppeteer.waittimeoutoptions">waittimeoutoptions</a><button aria-label="Toggle the collapsible sidebar category 'waittimeoutoptions'" type="button" class="clean-btn menu__caret"></button></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist" aria-expanded="false" tabindex="0" href="/puppeteer/api/puppeteer.webworker">webworker</a><button aria-label="Toggle the collapsible sidebar category 'webworker'" type="button" class="clean-btn menu__caret"></button></div></li></ul></li></ul></nav></div></aside><main class="docMainContainer_gTbr"><div class="container padding-top--md padding-bottom--lg"><div class="row"><div class="col docItemCol_GujU"><div class="docItemContainer_Adtb"><article><nav class="theme-doc-breadcrumbs breadcrumbsContainer_Z_bl" aria-label="Breadcrumbs"><ul class="breadcrumbs" itemscope="" itemtype="https://schema.org/BreadcrumbList"><li class="breadcrumbs__item"><a aria-label="Home page" class="breadcrumbs__link" href="/puppeteer/"><svg viewBox="0 0 24 24" class="breadcrumbHomeIcon_OVgt"><path d="M10 19v-5h4v5c0 .55.45 1 1 1h3c.55 0 1-.45 1-1v-7h1.7c.46 0 .68-.57.33-.87L12.67 3.6c-.38-.34-.96-.34-1.34 0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill="currentColor"></path></svg></a></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item"><a class="breadcrumbs__link" itemprop="item" href="/puppeteer/api/"><span itemprop="name">API</span></a><meta itemprop="position" content="1"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">browserfetcher</span><meta itemprop="position" content="2"></li></ul></nav><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_aoJ5"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><h1>BrowserFetcher class</h1><p>BrowserFetcher can download and manage different versions of Chromium and Firefox.</p><b>Signature:</b><div class="language-typescript codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-typescript codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token keyword" style="color:#00009f">export</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">declare</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">class</span><span class="token plain"> </span><span class="token class-name">BrowserFetcher</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h2 class="anchor anchorWithStickyNavbar_LWe7" id="remarks">Remarks<a class="hash-link" href="#remarks" title="Direct link to heading"></a></h2><p>BrowserFetcher operates on revision strings that specify a precise version of Chromium, e.g. <code>"533271"</code>. Revision strings can be obtained from <a href="http://omahaproxy.appspot.com/" target="_blank" rel="noopener noreferrer">omahaproxy.appspot.com</a>. In the Firefox case, BrowserFetcher downloads Firefox Nightly and operates on version numbers such as <code>"75"</code>.</p><p>The constructor for this class is marked as internal. Third-party code should not call the constructor directly or create subclasses that extend the <code>BrowserFetcher</code> class.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="example">Example<a class="hash-link" href="#example" title="Direct link to heading"></a></h2><p>An example of using BrowserFetcher to download a specific version of Chromium and running Puppeteer against it:</p><div class="language-js codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-js codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token keyword" style="color:#00009f">const</span><span class="token plain"> browserFetcher </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> puppeteer</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">createBrowserFetcher</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">const</span><span class="token plain"> revisionInfo </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token keyword control-flow" style="color:#00009f">await</span><span class="token plain"> browserFetcher</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">download</span><span class="token punctuation" style="color:#393A34">(</span><span class="token string" style="color:#e3116c">'533271'</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">const</span><span class="token plain"> browser </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token keyword control-flow" style="color:#00009f">await</span><span class="token plain"> puppeteer</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">launch</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token literal-property property" style="color:#36acaa">executablePath</span><span class="token operator" style="color:#393A34">:</span><span class="token plain"> revisionInfo</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">executablePath</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token punctuation" style="color:#393A34">}</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>*<!-- -->*<!-- -->NOTE<!-- -->*<!-- -->*<!-- --> BrowserFetcher is not designed to work concurrently with other instances of BrowserFetcher that share the same downloads directory.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="methods">Methods<a class="hash-link" href="#methods" title="Direct link to heading"></a></h2><table><thead><tr><th>Method</th><th>Modifiers</th><th>Description</th></tr></thead><tbody><tr><td><a href="/puppeteer/api/puppeteer.browserfetcher.candownload">canDownload(revision)</a></td><td></td><td>Initiates a HEAD request to check if the revision is available.</td></tr><tr><td><a href="/puppeteer/api/puppeteer.browserfetcher.download">download(revision, progressCallback)</a></td><td></td><td>Initiates a GET request to download the revision from the host.</td></tr><tr><td><a href="/puppeteer/api/puppeteer.browserfetcher.host">host()</a></td><td></td><td></td></tr><tr><td><a href="/puppeteer/api/puppeteer.browserfetcher.localrevisions">localRevisions()</a></td><td></td><td></td></tr><tr><td><a href="/puppeteer/api/puppeteer.browserfetcher.platform">platform()</a></td><td></td><td></td></tr><tr><td><a href="/puppeteer/api/puppeteer.browserfetcher.product">product()</a></td><td></td><td></td></tr><tr><td><a href="/puppeteer/api/puppeteer.browserfetcher.remove">remove(revision)</a></td><td></td><td></td></tr><tr><td><a href="/puppeteer/api/puppeteer.browserfetcher.revisioninfo">revisionInfo(revision)</a></td><td></td><td></td></tr></tbody></table></div></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages navigation"><a class="pagination-nav__link pagination-nav__link--prev" href="/puppeteer/api/puppeteer.browseremittedevents"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">BrowserEmittedEvents enum</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/puppeteer/api/puppeteer.browserfetcher.candownload"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">BrowserFetcher.canDownload() method</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#remarks" class="table-of-contents__link toc-highlight">Remarks</a></li><li><a href="#example" class="table-of-contents__link toc-highlight">Example</a></li><li><a href="#methods" class="table-of-contents__link toc-highlight">Methods</a></li></ul></div></div></div></div></main></div></div><footer class="footer footer--dark"><div class="container container-fluid"><div class="row 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<script src="/puppeteer/assets/js/main.8e9e8b27.js"></script>
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</body>
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</html> |