Yubico YKCS11 can't be setup in snapped firefox

Hello, I’m running snapped Firefox on Arch

firefox 110.0.1-2 2391 latest/stable mozilla✓

When I try to add yubikey PKCS11 support (for webauth authentication) following this manual https://developers.yubico.com/yubico-piv-tool/YKCS11/Supported_applications/firefox.html

I get the error (see screenshot) on driver load.

What am I doing wrong?

Thank you!

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