I set Firefox to default browser but Edge launches when clicking a link

I recently got a new computer (HP Dragonfly) and set Firefox as my default browser but when I click on a link from Outlook it opens in Edge. I'm using Windows11. I have: 1) Confirmed in Firefox settings that Firefox is the default 2) Confirmed in Edge settings that Edge is not the default browser 3) Confirmed in Windows default settings that Firefox is the default browser 4) Ensured in Outlook-Options-Advanced that "Open Hyperlinks in from Outlook" is set to "Default Browser" 5) Uninstalled and reinstalled Firefox. Also restarted my computer several times And yet, clicking on links from Outlook continues to open Edge. Please help I really don't like Edge!