It didn’t take long, and just two days after its official launch, the Mozilla Firefox Quantum web browser (version 57.0) landed today in the stable software repositories of Ubuntu 17.10 (Artful Aardvark), Ubuntu 17.04 (Zesty Zapus), Ubuntu 16.04 LTS (Xenial Xerus), and Ubuntu 14.04 LTS (Trusty Tahr). Firefox 57.0 a.k.a. Firefox Quantum is Mozilla’s latest and greatest web browser, offering speeds twice as fast as of previous releases, thanks to the implementation of an all-new Photon browsing engine that’s capable of leveraging the full potential of your personal computer, as well as a brand-new interface.