Attempting to use OnlyKey 2.1.1 HMAC challenge-response for KeepassXC 2.6.6 on Linux Mint 20.1. The OnlyKey app works just fine, but KeepassXC doesn’t recognize the presence of the OnlyKey. When I refresh the list of hardware, nothing. Searching the forum I see a few others in the same boat.
I discovered that the only way I can get KeepassXC to recognize the OnlyKey is by running the flatpak version from the command line outside of Firejail protection.
flatpak run org.keepassxc.KeePassXC
That’s fine I guess, but inconvenient. Is there a way that I can tweak the Firejail profile to allow connecting to the OnlyKey?