Puppeteer 23 now supports Firefox, simplifying browser automation and testing across both Chrome and Firefox.

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Mozilla Hacks

Puppeteer now supports Firefox as of version 23, enabling developers to use the same automation and end-to-end testing with both Chrome and Firefox. The implementation relies on the WebDriver BiDi protocol, which facilitates cross-browser functionality. Key features include capturing log messages, device emulation, network interception, and preload scripts. This update aims to advance cross-browser automation by standardizing protocols and reducing the complexity of supporting multiple browsers.

Announcing Official Puppeteer Support for Firefox

Removing experimental CDP support in Firefox