How to launch web testing on Firefox with android mobile?

Hi,
I am using Katalon for web automation testing from desktop and mobile.
From Desktop I run test on Chrome and Firefox (with platform Windows),from mobile (with platform Android mobile). In Android mobile, it launches by default Chrome browser for web testing.
Who does it knows the steps to run Firefox, and not Chrome, on Android mobile devices? I read this guide [http://appium.io/docs/en/drivers/gecko/zegovina(http://appium.io/docs/en/drivers/gecko/), but it doesn’t work.
I set capabilities in Desired Capabilities of Project setting, but it no matching capabilities!
Thanks!

Error : Driver info: driver.version: SwipeableAndroidDriver remote stacktrace: SessionNotCreatedError: A new session could not be created. Details: Unable to find a matching set of capabilities

Capabilities:
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