Mozilla Firefox

Mozilla Firefox is a free and open-source web browser developed by the Mozilla Foundation and its subsidiary, Mozilla Corporation, available on Windows, macOS, Linux, and Android. It has stayed independent from the major browser engines controlled by Google and Microsoft, which appeals to users who prioritize choice and privacy in how their browser is built.

Firefox began life in 2002 under the codename "Phoenix," created by Mozilla community members who wanted a lean, standalone browser rather than the older, bundled Mozilla Application Suite. During its beta period it earned a loyal following for its speed, security, and extension ecosystem at a time when Internet Explorer 6 dominated the market. The browser officially launched on November 9, 2004, and has been continuously developed since.

Today, Firefox is known for built-in tracking protection, a large library of community-built add-ons, and being one of the few major browsers not built on Chromium - a technical distinction that matters for web standards diversity and for users who want an alternative to Google's browser engine.