The Mozilla Foundation and its subsidiary, the Mozilla Corporation, created the free and open-source web browser known as Mozilla Firefox, or just Firefox. It displays web pages using the Gecko rendering engine, which incorporates up-to-date and future web standards. Under the code name Quantum, Firefox started implementing new technology in November 2017 in order to support parallelism and a more user-friendly UI. Windows 7 and later versions, macOS, and Linux all support Firefox. For a variety of Unix and Unix-like operating systems, including FreeBSD, OpenBSD, NetBSD, illumos, and Solaris Unix, it has unofficial ports available. Additionally, iOS and Android are supported. The iOS version, like all other iOS web browsers, employs the WebKit layout engine rather than Gecko due to platform constraints. One of the two primary browsers included with Amazon’s Silk Browser is also optimized for the Amazon Fire TV.
In 2002, the Mozilla community members that preferred a standalone browser over the Mozilla Application Suite bundle developed Firefox under the code name “Phoenix.” It was commended for its speed, security, and add-ons when compared to Microsoft’s then-dominant Internet Explorer 6 during its beta period and proved to be popular with its testers. In just nine months after its introduction on November 9, 2004, it had 60 million downloads, challenging Internet Explorer’s hegemony. It is the spirtual successor of Netscape Navigator because Netscape founded the Mozilla community in 1998 before being acquired by AOL.