Windows 11: Settings → Apps → Default apps → choose browser → set as default
Windows 10: Settings → Apps → Default apps → choose browser → set as default
macOS (Chrome/Firefox/Safari): Open the browser → Settings/Preferences → Default browser → Make default (or Set as default)
Android: Settings → Apps → Default apps → Browser app → select desired browser
iPhone/iPad (iOS/iPadOS): Settings → Apps → Default Browser App → select desired browser
If you don’t see the option: Install the browser app → open it → choose “Set as default” when prompted