Cookie Importer is a streamlined browser extension for Firefox that simplifies the process of managing and importing cookies in Netscape and JSON formats. It features a user-friendly interface that allows users to preview essential cookie details, including total counts, duplicates, and expired cookies prior to making any changes. The extension also supports various conflict resolution strategies, enabling users to overwrite, skip, or rename cookies as needed.

In addition to its core functionalities, Cookie Importer offers valuable features such as the ability to renew expired cookies and apply changes across all domains with a simple toggle. Users can easily clear cookies from specific websites or all domains, and the extension can automatically refresh the page to immediately reflect any updates. With keyboard shortcuts for quick commands, Cookie Importer is designed to enhance productivity for web developers and IT professionals.