[apparmor] [Merge] ~u-d/apparmor-profiles:thunderbird/launcher into apparmor-profiles:master

[Christian Boltz]

"xr" is not a valid permission set (except for deny rules). Please choose which exec mode (Cx, Px, ix, Ux or one of the fallback modes) you want to use ;-)
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https://code.launchpad.net/~u-d/apparmor-profiles/+git/apparmor-profiles/+merge/320276
Your team AppArmor Developers is requested to review the proposed merge of ~u-d/apparmor-profiles:thunderbird/launcher into apparmor-profiles:master.