I have a new MacBook Pro 2020 with MacOS Big Sur 11.0.1. I have made Firefox the default browser by going to the Apple menu and choosing System Preferences then choosing General. I have also made Firefox the default browser by going to the Firefox menu and choosing Preferences then General. On that screen it says that Firefox is not my default browser and there is a box to click on that says "Make Default". I click on it then click on "use Firefox", but when I click on links in my email Safari still opens. Any suggestions.