Comment 10 for bug 1710993

Just to add my 2 cents, I'm still suprise that Firefox package doesn't add a depend on pulseaudio with this version. By adding pulseaudio to the seed, we make the impression that we want pulseaudio on Lubuntu for Xenial. We don't. We need to add it because Firefox is broken without it.

However, adjusting the seed is probably the quicker way to fix this critical issue, on a stable release, so let's go with this.