Save Screenshot is a versatile Firefox add-on designed for capturing screenshots efficiently. It allows users to take full-page screenshots without the hassle of scrolling, ensuring that no duplicated headers appear in the final image. The add-on supports various image formats including PNG and JPEG, and even allows for lossless copying to the clipboard. Users can choose to capture the entire page, only the current viewport, or a specific selected region, making it adaptable to different needs.

Customization is a key feature of Save Screenshot, with options to configure context menus and buttons according to user preferences. It supports flexible shortcut keys, allowing the assignment of up to nine different shortcuts for specific screenshot settings. Additionally, users can create custom filename formats and embed metadata such as the screenshot date, page title, and URL within the image. However, it's important to note that some pages, particularly certain Mozilla sites, may restrict screenshot capabilities.