Mozilla Firefox (or simply Firefox) is a free and open-source web browser developed by the Mozilla Foundation and its subsidiary the Mozilla Corporation. Firefox is available for Windows, macOS and Linux operating systems, with its Firefox for Android available for Android (formerly Firefox for mobile, it also ran on the discontinued Firefox OS), and uses the Gecko layout engine to render web pages, which implements current and anticipated web standards. An additional version, Firefox for iOS, was released in late 2015, but this version does not use Gecko due to Apple’s restrictions limiting third-party web browsers to the WebKit-based layout engine built into iOS.
Pentium 4 or newer processor that supports SSE2
512MB of RAM
200MB of hard drive space
Macintosh computer with an Intel x86 processor
512 MB of RAM
200 MB hard drive space