It might be your local ebuilds that are the cause of your problem.

As an example, here are the versions of firefox, nodejs, and openssl installed on my system:

  $ eix -I  --format '<installedversions:EQNAMEVERSION>' nodejs -o firefox -o dev-libs/openssl
  =dev-libs/openssl-3.1.2
  =net-libs/nodejs-20.5.1
  =www-client/firefox-102.15.0

I have the same nodejs version and firefox version as you, but neither of them require openssl 1.x.