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[Bug 1643467] Re: Firefox 50 blocks Ubuntu 14.04 LTS's version of libavcodec

 

** Description changed:

  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.
  
- ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: firefox 50.0+build2-0ubuntu0.14.04.2
- ProcVersionSignature: Ubuntu 3.13.0-101.148-generic 3.13.11-ckt39
- Uname: Linux 3.13.0-101-generic x86_64
- AddonCompatCheckDisabled: False
- ApportVersion: 2.14.1-0ubuntu3.21
- Architecture: amd64
- AudioDevicesInUse:
-  USER        PID ACCESS COMMAND
-  /dev/snd/controlC0:  ori        2431 F.... pulseaudio
- BuildID: 20161114145022
- Channel: Unavailable
- CurrentDesktop: Unity
- Date: Mon Nov 21 10:09:03 2016
- DefaultProfileIncompatibleExtensions:
-  English (South Africa) Language Pack - langpack-en-ZA@xxxxxxxxxxxxxxxxxxx
-  English (GB) Language Pack - langpack-en-GB@xxxxxxxxxxxxxxxxxxx
-  Default - {972ce4c6-7e08-4474-a285-3208198ce6fd}
- DefaultProfilePrefSources:
-  prefs.js
-  [Profile]/extensions/{3d7eb24f-2740-49df-8937-200b1cc08f8a}/defaults/preferences/flashblock.js
-  [Profile]/extensions/{5384767E-00D9-40E9-B72F-9CC39D655D6F}/defaults/preferences/defaults.js
- ForcedLayersAccel: False
- IfupdownConfig:
-  # interfaces(5) file used by ifup(8) and ifdown(8)
-  auto lo
-  iface lo inet loopback
- InstallationDate: Installed on 2013-01-09 (1411 days ago)
- InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
- IpRoute:
-  default via 192.168.8.1 dev eth0  proto static 
-  192.168.8.0/22 dev eth0  proto kernel  scope link  src 192.168.8.75  metric 1
- IwConfig:
-  eth0      no wireless extensions.
-  
-  lo        no wireless extensions.
- MostRecentCrashID: bp-863e2662-418a-4ee8-9f3c-2aef72160606
- Profile1Extensions: extensions.sqlite corrupt or missing
- Profile1IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
- Profile1Locales: extensions.sqlite corrupt or missing
- Profile1PrefSources: prefs.js
- Profile1Themes: extensions.sqlite corrupt or missing
- Profiles:
-  Profile0 (Default) - LastVersion=50.0/20161114145022 (In use)
-  Profile1 - LastVersion=48.0/20160728204513 (Out of date)
- RelatedPackageVersions:
-  totem-mozilla     3.10.1-1ubuntu4
-  rhythmbox-mozilla 3.0.2-0ubuntu2
-  icedtea-7-plugin  1.5.3-0ubuntu0.14.04.1
- RfKill:
-  
- RunningIncompatibleAddons: True
- SourcePackage: firefox
- SubmittedCrashIDs:
-  bp-863e2662-418a-4ee8-9f3c-2aef72160606
-  bp-02def148-f1d0-4998-99e5-e81a42160606
-  bp-7c5452b0-1284-4c6d-a427-70c842141223
- UpgradeStatus: Upgraded to trusty on 2014-08-11 (832 days ago)
- WifiSyslog:
-  
- dmi.bios.date: 04/11/2011
- dmi.bios.vendor: Award Software International, Inc.
- dmi.bios.version: F2
- dmi.board.name: H61M-S2V-B3
- dmi.board.vendor: Gigabyte Technology Co., Ltd.
- dmi.board.version: x.x
- dmi.chassis.type: 3
- dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
- dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF2:bd04/11/2011:svnGigabyteTechnologyCo.,Ltd.:pnH61M-S2V-B3:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnH61M-S2V-B3:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
- dmi.product.name: H61M-S2V-B3
- dmi.sys.vendor: Gigabyte Technology Co., Ltd.

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https://bugs.launchpad.net/bugs/1643467

Title:
  Firefox 50 blocks Ubuntu 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

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References