To remove duplicate emails in Thunderbird, users can rely on the trusted solution preferred by experts, that is, the BitRecover Thunderbird Duplicate Remover tool. This user-friendly software is packed with powerful features, enabling users to effortlessly select large batches of Thunderbird emails and eliminate duplicates in just one attempt. One of its key advantages is the availability of a free demo version, which allows users to evaluate the tool’s performance and capabilities before opting for the full licensed version.