Mozilla-Firefox<\/a> is a free and Open-Source<\/a> web browser developed by the Mozilla-Foundation<\/a>. It was originally created by Blake-Ross<\/a> and Dave-Hyatt<\/a> as an experimental branch of the Mozilla-Project<\/a>. The browser uses the Gecko<\/a> engine, which is designed to support Web-Standards<\/a> like HTML5<\/a> and CSS<\/a>.<\/p> Firefox gained popularity for being a faster and more secure alternative to Internet-Explorer<\/a>. Over time, it introduced features like tabbed browsing and a robust extension system. In 2017, the Quantum<\/a> project was launched to modernize the browser's architecture using the Rust<\/a> language. Privacy remains a core mission for the Mozilla-Corporation<\/a>, as detailed in their Privacy Policy<\/a> and technical documentation on MDN Web Docs<\/a>.<\/p>