As far as I can tell, they do not. I believe (correct me if I'm wrong) that their Firefox package is just taken directly from Ubuntu, and they only apply a sing

As far as I can tell, they do not. I believe (correct me if I'm wrong) that their Firefox package is just taken directly from Ubuntu, and they only apply a single theming option on top of that: https://github.com/pop-os/default-settings/blob/master_focal/usr/lib/firefox/defaults/pref/pop-default-settings.js https://github.com/pop-os/default-settings/blob/master_focal...