Hello everyone!
How to create a popup for first time visitors leaving my site? I want to make a message so that there will be some chances of them coming back, and if they come back I don't want that popup to show up for them!
Please help me, thank you!

There is no quicker way of ensuring someone leaving your site will never come back, and tell others never to arrive then a popup that says, "Are you sure you want to navigate away from this site?" Do NOT do this.

tim

Same code and cookie setting as used for the popup on opening the page, but use the window.close event to trigger the popup.

NB:
The window.close event is not implemented in ALL browsers.

AND!

Even though it is posible, it should ONLY be done where uncompleted input exists or for enforced logouts