How to automatically authenticate when launching a web app from Katalon Studio in Firefox

selenium authentication firefox katalon-studio

It should be: WebUI.openBrowser("http://username:password@WebsiteURL") instead of WebUI.openBrowser("username:password@WebsiteURL")

selenium authentication firefox katalon-studio

Please try WebUI.Authenticate(url, username ,passsword, timeoutseconds).

That should do the job, did it for me .