Check the "Auto-open DevTools for popups".

Popup - You don't need to deal with these messages right away, yet at some point you will need to take action since these won't go away until explicitly say say you don't want them around anymore.

A pop-up is a modal view that can either take form as a pop-up menu or a pop-up dialog. To my understanding, when we use the word “pop-up”, what we want to express is the pop-up motion effect on the call-out of the UI treatment.

Popover is similar to tooltips; it is a pop-up box that appears when user click or hover on an element.

Other types of annotation added to movies and television include subtitles that provide translation from one language to another.

Those annoying pop-up windows? My fault, at least in part. I designed a vertically-oriented popup window that included navigation tools and an ad for inclusion on webpages at some point in late 1996 or early 1997. It was intended to be less intrusive than inserting an ad into the middle of a user’s homepage. I won’t claim responsibility (irresponsibility?) for inventing the damned things, and I disclaim any responsibility for cascading popups, popups that move to the top, and those annoying “bot” windows that open different popups every few minutes. Still, the fault is at least in part mine, and I’m sorry. :-)