Unable to run the script in Firefox and Edge browser


I’m new to the Katalon Studio, I have just started this tool few hovers ago.
I’m trying to run my first script in Firefox and Edge browser, but it throws an error

Test Cases/Sample 1 TC FAILED because (of) Unable to open browser with url: ‘WebUI.openBrowser(GlobalVariable.G_SiteURL)’ (Root cause: org.openqa.selenium.WebDriverException: Cannot find firefox binary in PATH. Make sure firefox is installed. OS appears to be: WIN10

But it runs well in Chrome and IE browsers.

Can any once help me to solve this issue.