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Editing File: /etc/apparmor.d/abstractions/snap_browsers

profile snap_browsers {
  include if exists <abstractions/snap_browsers.d>
  include <abstractions/base>
  include <abstractions/dbus-session-strict>

/etc/passwd r,
  /etc/nsswitch.conf r,
  /etc/fstab r,

# noisy
  deny owner /run/user/[0-9]*/gdm/Xauthority r, # not needed on Ubuntu

/{,snap/core/[0-9]*/,snap/snapd/[0-9]*/}usr/bin/snap mrix, # re-exec
  /{,snap/core/[0-9]*/,snap/snapd/[0-9]*/}usr/lib/snapd/info r,
  /{,snap/core/[0-9]*/,snap/snapd/[0-9]*/}usr/lib/snapd/snapd r,
  /{,snap/core/[0-9]*/,snap/snapd/[0-9]*/}usr/lib/snapd/snap-seccomp rPix,
  /{,snap/core/[0-9]*/,snap/snapd/[0-9]*/}usr/lib/snapd/snap-confine Pix,
  /var/lib/snapd/system-key r,
  /run/snapd.socket rw,

@{PROC}/version r,
  @{PROC}/cmdline r,
  @{PROC}/sys/net/core/somaxconn r,
  @{PROC}/sys/kernel/seccomp/actions_avail r,
  @{PROC}/sys/kernel/random/uuid r,
  owner @{PROC}/@{pid}/cgroup r,
  owner @{PROC}/@{pid}/mountinfo r,
  owner @{HOME}/.snap/auth.json r, # if exists, required

dbus send bus="session" path="/org/freedesktop/systemd1" interface="org.freedesktop.systemd1.Manager" member="StartTransientUnit" peer=(name="org.freedesktop.systemd1"),
  dbus receive bus="session" path="/org/freedesktop/systemd1" interface="org.freedesktop.systemd1.Manager" member="JobRemoved",

/sys/kernel/security/apparmor/features/ r,

# allow launching official browser snaps.
  /snap/chromium/[0-9]*/meta/{snap.yaml,hooks/} r,
  /snap/firefox/[0-9]*/meta/{snap.yaml,hooks/} r,
  /snap/opera/[0-9]*/meta/{snap.yaml,hooks/} r,

/var/lib/snapd/sequence/{chromium,firefox,opera}.json r,
  /var/lib/snapd/inhibit/{chromium,firefox,opera}.lock rk,
  # add other browsers here
}

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