Stop Safari from asking to be default browser My default browser is currently Firefox. On those rare times when I do open Safari, it displays a message at the top of the Favorites page asking if I want to make Safari my default browser. How do I make this go away?

Edit 1: I am using High Sierra.
Without knowledge of your macOS version:


Open System settings 
Choose General
Choose from the pop-up menu in
the default-Browser section your preferred browser.