Wikipedia:Tools/Navigation popups

Warning: You take full responsibility for any action you perform using navigation popups. You must understand Wikipedia policies and use this tool within these policies, or risk being blocked from editing.

Navigation popups is an opt-in Wikipedia feature (gadget) that offers easy access to article previews and several Wikipedia functions in popup windows which appear when you hover the cursor over links. It should not be confused with the default Page Previews and Reference Tooltips, which are more reader-focused popups seen by all anonymous and new users.

• Installation: Enter Special:Preferences and click "Gadgets"; under the "Browsing" section, check the box to enable "Navigation popups: article previews and editing functions pop up when hovering over links", then click save. Follow the instructions on the page to bypass your browser's cache.

If you're having trouble, you may like to peruse some frequently asked questions.