Bank Feed Set Up - Barclays Corporate iPortal

SOLVED

I am having an issue setting up the Bank Feed - we bank with Barclays Corporate and the website - Barclays iPortal - does not support Chrome as a web browser.

When I am attempting to set up the bank feed, I need to sign in to our Barclays iPortal website in a "mini window" in Sage - but the issue arises where the Barclays "log-in" button does not appear and the message is shown regarding the web browser not being supported.

Is there any way that the "mini window" that pops up in sage can be set so that it opens in either Internet Explorer or Firefox?