SOAPUI Default browser

Hi, Been searching around but can't find the answer.

Two related questions:

1. What is the default browser used by SoapUI? 

2. Is there a way to change it to other browsers?

Background:

I created a Rest project, defined a oAuth2.0 profile (Authorization Code Grant) when I clicked access token, it opens a browser for me to enter my credentials. All good but when I proceed, my application on the other end threw error saying the browser is not supported. My application supports all the latest browsers such as IE11, Chrome, Edge.

Cheers.