|Video Streaming Downloaders - DownZemAll Portable for Windows 32-bit Version 2.5.4 - Free software for Windows and Linux - 21.11.2021 - DownZemAll! is a rewrite of the legacy software DownThemAll! which was an extension for Mozilla Firefox, but whose development stopped around 2016, when Mozilla Firefox migrated to WebExtensions. DownZemAll! is a standalone download manager for Windows and Linux. It aims to work with latest versions of Mozilla Firefox (powered by WebExtensions), and other web browsers (Chrome, Edge, Safari...). DownZemAll! is written in C++ and based on the Qt5 framework.