To answer the actual question.

Edit the Tor Browser about:config (network.proxy.socks and maybe a few other settings), use Palemoon https://www.palemoon.org/, or Basilsik https://www.basilisk-browser.org/

Why are the maintainer's political beliefs relevant in this context?

Thanks. Fixed after changing encryption type to ECIES-X25519 by setting leaseSetEncType=4 after shutting down the router. This setting could not be changed through the GUI with the service shut down unless routerconsole.advanced=true.

How do we know this quote came from LibreWolfe?

Please share.

HTTPS only mode is disabled. I think the problem is related to the issue described in the link below.

http://i2pforum.i2p/viewtopic.php?t=1216

Use https://librewolf.net/ instead.

I figured out how to use I2P without being 100.

LibreWolf. Easy and secure by default.

"The website [http://hq.postman.i2p/] was not reachable, because it uses encryption options that are not supported by your I2P or Java version."

How do I fix this?