www/firefox dom.ipc.processCount 8 but maybe more than eight such processes

From: Graham Perrin <grahamperrin_at_gmail.com>
Date: Mon, 27 Dec 2021 18:59:26 UTC
Please: do I misunderstand what's in the screenshots at 
<https://forums.freebsd.org/posts/548374>?

Season's greetings
Graham