Making a rule for the firewall?

I recently installed Zorin OS 15.3. I am new to linux and new to cryptocurrency. I am trying to connect a hardware wallet but the app can’t find it. How do I make a rule, what should it be? The wallet app isn’t listed on the pop up menu and I have no idea what port to use. And if there’s anything else I might need to know to make this work, please help a newbie outs lol. Thanks!

I have no experience with cryptocurrency but I will make an uninformed guess that your problems aren’t related to the firewall. Can you describe, in a bit more detail, what this application is, how you installed it and what specific steps you are trying to execute with it? Additionally, please provide links as needed.