Firefox 39 released

Firefox 39 has been released for both desktop and mobile systems. The new features include a social sharing tool for the Firefox Hello video chat subsystem. It is designed to make it easier to share Firefox Hello chat invitations over third-party social networks. In addition, Firefox's existing phishing-and-malware detection tool has been extended to cover downloads, support has been added for Unicode 8.0's multi-ethnic emoji characters, and there is improved support for the Accessible Rich Internet Applications (ARIA) standard.