[apparmor] [Merge] ~talkless/apparmor-profiles:thunderbird-mozilla-java-plugins into apparmor-profiles:master

[intrigeri]

Review: Approve

It seems something went wrong: John marked this as merged but apparently it was not, so I just merged it myself (+ applied the same change to 18.04): https://gitlab.com/apparmor/apparmor-profiles/commit/5ecd985737ca1e1bb6954525dfc1a405f1fe16b7.
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https://code.launchpad.net/~talkless/apparmor-profiles/+git/apparmor-profiles/+merge/331617
Your team AppArmor Developers is requested to review the proposed merge of ~talkless/apparmor-profiles:thunderbird-mozilla-java-plugins into apparmor-profiles:master.