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
WebSocket in Firefox 6, Safari 6, Google Chrome 14, Opera 12.10 and Internet Explorer 10. A detailed protocol test suite report lists the conformance of those browsers to specific protocol aspects. An older, less secure version of the protocol was implemented in Opera 11 and Safari 5, as well as the mobile version of Safari in iOS 4.2. The BlackBerry Browser in OS7 implements WebSockets. Because of vulnerabilities, it was disabled in Firefox 4 and 5, and Opera 11. To establish a WebSocket connection, the client sends a WebSocket handshake request, for which the server returns a WebSocket handshake response, as