DjVu.js Viewer is a Firefox add-on designed for seamless viewing of DjVu files directly in the browser. This subscription-based extension allows users to open DjVu files from both online links and local drives, enhancing accessibility and convenience. Users can utilize the context menu for quick access to web-based DjVu files and can load local files easily after navigating to the viewer's page. Moreover, the extension supports bundling multi-file DjVu documents into a single viewable file, streamlining the user experience.

In addition to its core functionality, DjVu.js Viewer processes and