
Description: Greasemonkey is a Firefox extension that allows users to install user scripts that make on-the-fly changes to web page content before or after the page is loaded in the browser. It allows customization and enhancement of web pages to suit user preferences.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: F.B. Purity is a browser extension that provides enhanced customization and privacy options for Facebook. It allows you to alter the Facebook user interface, block sponsored posts, filter posts by type or keyword, and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API