At risk of being offtopic, but why would you use this over LibreWolf or hardened Firefox? I personally wouldn’t pay for a proprietary plugin that is replaceable by open source software that performs the same functions.
https://github.com/simplex-chat/simplex-chat
IVPN, Mullvad, or Proton VPN.
Also, registrar is Cloudflare and it’s hosted from the US.
At risk of being offtopic, but why would you use this over LibreWolf or hardened Firefox? I personally wouldn’t pay for a proprietary plugin that is replaceable by open source software that performs the same functions.