Hello, and thank you all for your kindness and very active community.
I installed firewalld, firewalld-s6, but no icon in taskbar.
Works fine in XFCE - open-rc, but not in S6.
I can run Firewalld but there is no option for shields up, and it's hard to adjust, so I prefer taskbar icon.
Added firewalld service as a boot.
Any help ? Thank you.
A quick glance at the openrc and s6 scripts shows they're basically the same. I have no idea about the taskbar icon thing, but it's probably some other package you need to install and not just the daemon itself.
Probably some update solved my problem. Or whatever. It just works now.
Thank you.