/etc/apparmor.d/abstractions/ubuntu-browsers.d/kde is in apparmor 2.8.95~2430-0ubuntu5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 | # vim:syntax=apparmor
# Users of this abstraction need to #include the ubuntu-helpers abstraction
# in the toplevel profile. Eg:
# #include <abstractions/ubuntu-helpers>
#include <abstractions/kde>
/usr/bin/kde4-config Cx -> sanitized_helper,
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