Switching to firefox won´t work until you change the environment variable PUPPETEER_PRODUCT to firefox and reinstall puppeteer and download the firefox binaries. For any default puppeteer install only the chrome binaries will exist. Please notice that I can not just create a hello world project and set product: 'firefox' because the binaries does not exist and will not automatically downloaded. How can I download firefox and chrome binaries together? That I can easily switch the product value? client = await puppeteer.launch() // or product: 'chrome' I tried to run npm update after switching the PUPPETEER_PRODUCT environment variable however this doesn´t work and nothing gets updated. PUPPETEERPRODUCTfirefox npm install puppeteer On linux you can run the command above and it will download the binaries. If we use the Docker images for Node. This guide helps to use Puppeteer inside a Docker container using the Node.js image. It will delete the firefox binaries and only install chrome again. Introduction Puppeteer is a Node.js library which provides a high-level API to control Chromium (or Firefox) browsers over the DevTools Protocol. However when I change it back to chrome and reinstall it: npm config set PUPPETEER_PRODUCT chrome npm i puppeteer You’re all set To make sure GPC is turned on in Firefox Nightly, visit https. In the search box, type globalprivacycontrol. Then inside of my project I run: npm i puppeteer Type about:config in the URL bar of your Firefox browser. By default, this library runs the browser in headless mode, but it can be also configured to run Chrome or Chromium fully (non-headless). It can work with Chrome, Chromium, or Firefox. Puppeteer provides a high-level API to control the browser. I´am able to download firefox binaries for my project by set the environment variable: npm config set PUPPETEER_PRODUCT firefox npm i puppeteer Puppeteer is a Node library that is used for browser automation.
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