Start Your Engines – Firefox Quantum Lands in Beta, Developer Edition | The Mozilla BlogStart Your Engines – Firefox Quantum Lands in Beta, Developer Edition Engines are important, both in cars and in browsers. That’s why we’re so revved up this morning – we’re releasing the Beta of a whole new Firefox, one that’s powered by a completely reinvented, modernized engine. Since the version number – 57 – can’t really convey the magnitude of the changes we’ve made, and how much faster this
