
Description: Firefox Preview is an early version of the Firefox browser for Android that allows users to test new features before they go mainstream. It aims to be faster and more secure than previous Firefox for Android versions.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Chromium is an open-source web browser project that forms the basis for the popular Google Chrome browser. It is fast, secure, and customizable.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API