Mozilla Firefox, Portable Edition Legacy External: Publisher Support PortableApps. Learn more about Firefox ESR Skip to main content. Firefox Portable is a dual-mode bit and bit app, ensuring Firefox runs as fast as possible on every PC. It has lots of great features including popup-blocking, tabbed-browsing, integrated search, improved privacy features, automatic updating and more.
Individual users should use standard Mozilla Firefox, Portable Edition. It is intended for groups who deploy and maintain the desktop environment in large organizations such as universities and other schools, county or city governments and businesses and the developers who support them.
Version Mozilla Firefox, Portable Edition Legacy 52 can run from a cloud folder, external drive, or local folder without installing into Windows.