Wikipedia Popup is a free Chrome add-on developed by David. It falls under the category of Browsers and is specifically classified under Add-ons & Tools. This convenient extension allows users to quickly access Wikipedia entries for selected text on a webpage.

The main features of Wikipedia Popup include a customizable default popup panel size, which can be configured by clicking on the extension icon. This add-on does not clutter the browsing history and utilizes the mobile version of Wikipedia for enhanced readability. Additionally, the settings can be synced across Chrome browsers with the user's account.

Users have the option to change the default hotkey by accessing the extension icon and clicking on the "Configure hotkey" button. The extension also provides a context menu option for those who prefer not to use hotkeys. Furthermore, Wikipedia Popup supports over 300 languages of Wikipedia, making it accessible to a wide range of users.