Wikipedia:Tools/Navigation popups

Warning: You take full responsibility for any actions taken using navigation popups. You must read and understand all relevant Wikipedia policies and abide by them when using this tool; failure to do so may result in being blocked from editing.

Navigation popups is an opt-in Wikipedia gadget (feature) that offers article previews and several functions through popup windows when hovering over wikilinks. It should not be confused with the default Page Previews and Reference Tooltips, which appear for all registered and unregistered users and serve as more reader-focused popups.