[Bug 2046844] Re: AppArmor user namespace creation restrictions cause many applications to crash with SIGTRAP

[John Johansen]

The AppArmor profile covers the packaged version and the standard
privileged install location. You are correct that it does not cover
running firefox from an unprivileged user writable location like $HOME.

For unprivileged user writable locations like $HOME/bin/ the user has to
deliberately make a privileged action like installing a profile for the
location of the application. This applies to the appimage version run
out of the users $HOME as well.

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https://bugs.launchpad.net/bugs/2046844

Title:
  AppArmor user namespace creation restrictions cause many applications
  to crash with SIGTRAP

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