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

[intrigeri]

FTR https://code.launchpad.net/~sdeziel/apparmor-profiles/+git/apparmor-profiles/+merge/330183 is a superset of this MR, so if/once Simon's one is merged we can close this one as obsolete.
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https://code.launchpad.net/~u-d/apparmor-profiles/+git/apparmor-profiles/+merge/320285
Your team AppArmor Developers is requested to review the proposed merge of ~u-d/apparmor-profiles:thunderbird/links into apparmor-profiles:master.