What is Ctrl D?

What is Ctrl D? All major Internet browsers (e.g., Chrome, Edge, Firefox, Opera) pressing Ctrl + D creates a new bookmark or favorite for the current page. For example, you could press Ctrl + D now to bookmark this page.

All major Internet browsers (e.g., Chrome, Edge, Firefox, Opera) pressing Ctrl + D creates a new bookmark or favorite for the current page. For example, you could press Ctrl + D now to bookmark this page.