Open in Popup Window is a lightweight Firefox extension designed to enhance link preview functionality without navigating away from the current page. This tool integrates seamlessly into the context menu of links, allowing users to open a compact popup window at the cursor's position. Key features include the ability to preview images and search selected text, as well as customizable settings for popup dimensions and position on the screen. Users can also utilize keyboard shortcuts for quick access.

This extension serves as a practical alternative to similar tools like Safari Link Preview and Arc Peek. It efficiently handles link previews without being hindered by CORS issues, unlike other iframe-based extensions. Privacy is prioritized, as the extension does not collect personal data and is open-source, ensuring transparency in its functionality.