Dezoomify is a free browser extension for Firefox that simplifies the process of downloading zoomable images from various websites. By detecting zoomable images on web pages, it allows users to easily save high-quality versions of these images. Installation is straightforward, requiring just a click on the magnifying glass icon in the address bar when a zoomable image is opened. The extension works by intercepting network requests and identifying images based on recognized patterns, making it a practical tool for graphic and design enthusiasts.

Supporting a wide range of renowned websites, including Google Arts & Culture and the British Library, Dezoomify is compatible with various zoomable image technologies such as IIIF and Microsoft Deep Zoom. Users can access the source code for this open-source add-on on GitHub and benefit from a tutorial video that demonstrates its usage. Overall, Dezoomify enhances the multimedia experience by providing a seamless way to obtain high-resolution images.