
Description: PreFox is an open-source web browser that focuses on user privacy and security. It blocks ads and trackers by default and doesn't collect user data. PreFox is based on Firefox but hardened for enhanced privacy.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: SigmaOS is an open-source operating system designed for security, privacy, and flexibility. It is based on Linux and aims to provide advanced security features out of the box while remaining user-friendly.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API