here : https://www.inmotionhosting.com/support/security/dns-over-https-encrypted-sni-in-firefox/
It correspond to my graphical settings via privacy menu on Firefox 115.9 Esr.
According to the site : https://support.mozilla.org/fr/kb/dns-via-https-firefox
DoH was ready on Firefox in 2019.
Firefox 68 is out July 9, 2019 : https://www.mozilla.org/en-US/firefox/68.0/releasenotes/ Not sure it was included. I presume Mypal 68 have too old base for theses functions. Perhaps for Mypal 85 ?
I've tested the latest build on Xp 64 bits, it works. But I'm still waiting for the Ungoogled version. ATM I stay with 360 chrome and Firefox derivatives.
I've tested the first X64 v121 release under Virtualbox with Xp64 and 2 Gb RAM, it's working.
I've read it exist updates, but you've lost me, what is working or not with my VM or it is better to wait for an other V121 update?
Forget someone can hack Widewine today to make it work on Xp. I simply wrote I need this DRM for my usage in some cases and for that I need to use an other OS.