[apparmor] [Bug 1859361] Re: Firefox profile causes widevine DRM to crash

baptx 1859361 at bugs.launchpad.net
Sun Oct 25 12:17:36 UTC 2020


*** This bug is a duplicate of bug 1777070 ***
    https://bugs.launchpad.net/bugs/1777070

Since this issue is marked as duplicate of bug #1777070, let's continue the discussion there: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1777070
I added a new comment.

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https://bugs.launchpad.net/bugs/1859361

Title:
  Firefox profile causes widevine DRM to crash

Status in AppArmor:
  New
Status in AppArmor Profiles:
  Confirmed

Bug description:
  Steps to reproduce the issue:
  ===============================
  1) Enable digital rights management support in FireFox (Preferences -> General)
  2) sudo aa-enforce /etc/apparmor.d/usr.bin.firefox
  3) Navigate to a site which has protected content (I tested this using crunchyroll.com)

  FireFox should display a yellow bar at the top letting you know
  Widevine has crashed.

  
  Workaround:
  ===============================
  I corrected this problem by adding the following line to usr.bin.firefox:

  owner /home/*/.mozilla/firefox/rutsti3o.default-release/gmp-
  widevinecdm/4.10.1440.19/libwidevinecdm.so m,

  
  Conclusion:
  ===============================
  Maybe the default FireFox profile can be updated in a way that allows it to play nice with Widevine in the future.

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