Google Chrome


Press Ctrl + Shift + N on your keyboard or click ⋮ and then 'New Incognito Window'.


https://support.google.com/chrome/answer/95464


Mozilla Firefox


Press Ctrl + Shift + P on your keyboard or click the menu button ☰ and then 'New Private Window'.


https://support.mozilla.org/en-US/kb/private-browsing-use-firefox-without-history#w_how-do-i-open-a-new-private-window


Apple Safari

Press Shift + Command + N on your keyboard or click File and then 'New Private Window'.


https://support.apple.com/en-gb/guide/safari/ibrw1069/mac