Comparison of HTML5 and Flash Google Chrome, by dropping support for NPAPI and using only Chrome's PPAPI. In August 2016, Adobe announced that, beginning with version 24, it would resume offering of Flash Player for Linux for other browsers. All web browsers support HTML and other Web standards to various degree. Adobe released a tool that converts Flash to HTML5, and in June 2011, Google released an experimental tool that does the same. , versions of browsers such as Chrome, Firefox, Internet Explorer, Opera, and Safari implement HTML5 to a considerable degree. However, some portions of the HTML5 specification were still being implemented by browser
Firefox Firefox's Javascript performance on Kraken and the newer Jetstream tests trailing slightly behind all other tested browsers except Internet Explorer, which performed relatively poorly. On Octane, Firefox came ahead of IE and Safari, but again slightly behind the rest, including Vivaldi and Microsoft Edge. Edge took overall first place on the Jetstream and Octane benchmarks. As of the adoption of Firefox 57 and Mozilla's Quantum project entering production browsers in November 2017, Firefox was tested to be faster than Chrome in independent JavaScript tests, and demonstrated to use less memory with many browser tabs opened. Downloads have continued at an