Marking as security; either Firefox is wrong or libavcodec is vulnerable and probably we need security people to look at it to determine which one it is...
** Information type changed from Public to Public Security -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libav in Ubuntu. https://bugs.launchpad.net/bugs/1643467 Title: Firefox 50 blocks Ubuntu 12.04 and 14.04 LTS's version of libavcodec Status in firefox package in Ubuntu: Confirmed Status in libav package in Ubuntu: Confirmed Bug description: Whenever it tries to play a video, Firefox 50 displays this message at the top of every page: "libavcodec may be vulnerable or is not supported, and should be updated to play video" https://dxr.mozilla.org/mozilla-central/source/browser/locales/en- US/chrome/browser/browser.properties?q=%22libavcodec+may+be+vulnerable%22&redirect_type=single#742 Firefox refuses any libavcodec version prior to 54.35.1 (unless media.libavcodec.allow-obsolete==true). https://dxr.mozilla.org/mozilla- central/source/dom/media/platforms/ffmpeg/FFmpegLibWrapper.cpp#60 Users should not be subjected to this warning, as it is vague (does not instruct them how to fix it). Ubuntu 14.04 LTS should ship with an updated version of libavcodec. DistroRelease: Ubuntu 14.04 Package: firefox 50.0+build2-0ubuntu0.14.04.2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1643467/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
