[Closed] Get warning "some of Firefox’s security features may offer less protection on your current operating system"

Ubuntu Version:

Ubuntu 24.04.2

Desktop Environment (if applicable):

Gnome

Problem Description:

I'm on a fresh install. I have uninstalled the snap Firefox and Thunderbird and installed them from the MozillaTeam PPA. When I click on a link in Thunderbird I get the message "some of Firefox’s security features may offer less protection on your current operating system". This is reminiscent of this thread in the old Ubuntu Forums started by @1fallen .

Otherwise the message does not appear. There are both Firefox and Thunderbird apparmor profiles in /etc/apparmor.d which are just like the one 1fallen lists in that thread which I’ll list below.

Relevant System Information:

Screenshots or Error Messages:

What I’ve Tried:


$ cat /etc/apparmor.d/firefox
# This profile allows everything and only exists to give the
# application a name instead of having the label "unconfined"

abi <abi/4.0>,
include <tunables/global>

profile firefox /{usr/lib/firefox{,-esr,-beta,-devedition,-nightly},opt/firefox}/firefox{,-esr,-bin} flags=(unconfined) {
  userns,

  # Site-specific additions and overrides. See local/README for details.
  include if exists <local/firefox>
}
$ cat /etc/apparmor.d/thunderbird
# This profile allows everything and only exists to give the
# application a name instead of having the label "unconfined"

abi <abi/4.0>,
include <tunables/global>

profile thunderbird /usr/bin/thunderbird flags=(unconfined) {
  userns,

  # Site-specific additions and overrides. See local/README for details.
  include if exists <local/thunderbird>
}

Thanks for taking a look. :slight_smile:

Because you’re using the PPA from Mozilla, you should really be contacting them for help with this.

As @wxl mentioned, you’d need to report this to the PPA owner. This is an entirely unsupported setup.

There is no reason not to discuss this here, but not in the area that’s meant to fulfill our support guarantee. I"m going to move it in the Lounge for that reason.

1 Like

Never mind. I don’t care to do something that’s not officially supported. Ubuntu Forums were free in recommending the MozillaTeam PPA so that’s why I did it. Thanks anyway. :slight_smile: