diff --git a/apparmor.d/abstractions/chromium-common b/apparmor.d/abstractions/chromium-common
index 985964bd..314e0d43 100644
--- a/apparmor.d/abstractions/chromium-common
+++ b/apparmor.d/abstractions/chromium-common
@@ -3,6 +3,9 @@
 # Copyright (C) 2022-2023 Alexandre Pujol <alexandre@pujol.io>
 # SPDX-License-Identifier: GPL-2.0-only
 
+# This abstraction is for chromium based application. Chromium based browsers
+# need to use abstractions/chromium instead.
+
   abi <abi/3.0>,
 
   # The following rules are needed only when the kernel.unprivileged_userns_clone option is set
diff --git a/apparmor.d/abstractions/flatpak-snap b/apparmor.d/abstractions/flatpak-snap
index 0a132289..f20a998b 100644
--- a/apparmor.d/abstractions/flatpak-snap
+++ b/apparmor.d/abstractions/flatpak-snap
@@ -1,6 +1,6 @@
 # apparmor.d - Full set of apparmor profiles
 # Copyright (C) 2018 Nibaldo Gonzalez <nibgonz@gmail.com>
-#               2019-2021 Mikhail Morfikov
+# Copyright (C) 2019-2021 Mikhail Morfikov
 # SPDX-License-Identifier: GPL-2.0-only
 
   abi <abi/3.0>,
diff --git a/apparmor.d/abstractions/totem b/apparmor.d/abstractions/totem
index e553eccc..b2815c19 100644
--- a/apparmor.d/abstractions/totem
+++ b/apparmor.d/abstractions/totem
@@ -1,7 +1,8 @@
-# vim:syntax=apparmor
-# Author: Jamie Strandboge <jamie@canonical.com>
+# apparmor.d - Full set of apparmor profiles
+# Copyright (C) Jamie Strandboge <jamie@canonical.com>
+# SPDX-License-Identifier: GPL-2.0-only
 
-# Description: Limit executable access and reasonable read access. A look at
+# Limit executable access and reasonable read access. A look at
 # the gconf schema files for totem-video-thumbnailer reveals at least the
 # following files:
 #  3gpp, ac3, acm, aiff, amr-wb, ape, asf, asx, au, avi, basic, divx, dv, flac,
diff --git a/apparmor.d/abstractions/user-read b/apparmor.d/abstractions/user-read
index 007ae62b..210fd5f2 100644
--- a/apparmor.d/abstractions/user-read
+++ b/apparmor.d/abstractions/user-read
@@ -2,8 +2,8 @@
 # Copyright (C) 2021 Alexandre Pujol <alexandre@pujol.io>
 # SPDX-License-Identifier: GPL-2.0-only
 
-# Give read access on all defined user directories. It should only be used if
-# access to ALL folders is required.
+# This abstraction gives read access on all defined user directories. It should
+# only be used if access to **ALL** folders is required.
 
   owner @{HOME}/@{XDG_WALLPAPERS_DIR}/{,**} r,
   owner @{HOME}/@{XDG_SCREENSHOTS_DIR}/{,**} r,