> DEBUG=puppeteer:launcher NODE_PATH=./ node examples/cross-browser.js To get additional logging about which browser binary is executed, run this example as:

Bynens links to an example of Firefox automation with Puppeteer, whose excerpt is as follows: To have Puppeteer fetch a Firefox binary for you, first run: Puppeteer can now fetch a Firefox Nightly binary. With Firefox support transitioning to the puppeteer package, the puppeteer-firefox package has been deprecated. Playwright nears the release its first major version with 99% of tests passing (in v0.13). Both developers have since moved to Microsoft working on Playwright, a concurrent cross-browser automation Node.js library which supports all major browser engines ( Chromium, WebKit and Firefox) in a single API. Google announced in passing a first effort (code-named puppeteer-firefox) to support Mozilla’s browser at Google I/O ’19 in the Modern Web Testing and Automation with Puppeteer (Google I/O ’19) talk by Andrey Lushnikov and Joel Einbinder. Puppeteer 3.0, however, additionally supports Firefox, a move that is poised to increase its usage for cross-browser testing purposes. While Puppeteer 2.0 supported Chrome 79 and deprecated Node 6, Puppeteer 3.0 supports the latest Chrome browser ( Chrome 81) and no longer supports Node 8. As such, new versions of Puppeteer are often linked to new versions of the Chrome browser and the deprecation of old Node.js versions. Puppeteer is a browser test automation Node.js library that provides a high-level API to control headless Chrome or Chromium over the DevTools Protocol. The new version also upgraded support to the latest Chrome 81, and removed support for Node 8. Puppeteer now supports Firefox in addition to the Chrome browser. Mathias Bynens, Google developer working on ChromeDevTools and v8, released Puppeteer 3.0.

Puppeteer firefox download