Firefox 47 Debuts With 13 Security Advisories
Mozilla provided 13 security advisories with Firefox 47. The updated browser also supports encrypted HTML5 video support.Firefox 47, which Mozilla released on June 7, provides users of the open-source Web browser with a baker's dozen security updates and a number of incremental feature improvements. A core focus for Firefox 47's feature improvements come in the form of video enablement, including support for Google's VP9 video codec. Additionally, Firefox will now play YouTube video with HTML5 if a user does not have Flash installed. The HTML5 video support is further extended to enable playback of Digital Rights Management (DRM) protected video, thanks to the integration of Google's Widevine technology. With Firefox 47, Mozilla is now also providing users with more insight into browser performance and possible problems with slow pages and add-ons with the new "about:performance" option. The about:performance option shows users the performance of open tabs as well as add-ons and provides the ability to close or reload the tab, or to disable and uninstall an add-on. Mozilla rated only two of the 13 security advisories as critical, including MSFA-2016-49, which details a pair (CVE-2016-2815 and CVE-2016-2818) of memory safety bugs.
"Some of these bugs showed evidence of memory corruption under certain circumstances, and we presume that with enough effort at least some of these could be exploited to run arbitrary code," Mozilla warns in its advisory.