Popup Window is a Firefox add-on designed to enhance the browsing experience by allowing users to move tabs to a standalone window. This tool is particularly useful for those who prefer a clutter-free interface, as it removes the tabs bar, navigation bar, and bookmark bar from view. Users can easily open links in a pop-up window or move the current page to a separate window with just a few clicks, ensuring a more focused browsing session.

The add-on offers straightforward functionality, allowing users to right-click on a link or page to initiate the move to a pop-up window. Additionally, a toolbar button provides quick access to this feature. Popup Window also includes various preferences that can be adjusted in the add-on settings, giving users control over their browsing setup. This makes it a valuable tool for anyone looking to customize their Firefox experience.