Problem with jnlp files, I can't remove the pop up

Hello everyone, I am having a problem executing a test case in katalon, I need to remove a pop up that the firefox browser launches and I cannot achieve it.
It’s a java pop up a jnlp. From what I was seeing I would have to configure firefox for that, but the configuration is not saved once I close the browser and raise it again.
Does anyone have the same problem or how can I solve it?
Attachment capture,

Thank you!

If this is truly a browser-level notification, you will need to set a desired capability to handle it. See this:

Also see my topic on how to figure out which capabilities you need to set: