I accidentally click on "do not show me this message again going forward".How can I set-it up like it was in oder to see the default message again?

1- when deleting submission a popup use to appear asking me if I am sure I want to delete. I accidentally click on "do not show me this message again going forward".
Q1: How can I set-it up like it was in oder to see the default message again?

You can clear your browsers cache, or use another browser, we recommend Chrome or Firefox.