Comprehensive Review of Mozilla Thunderbird ESR

Mozilla Thunderbird ESR is a robust email client designed for Windows users, offering an annual extended support release. This version prioritizes both new features and essential stability and security updates, ensuring users have a reliable communication tool. As an open-source application, it champions open standards, allowing seamless interaction across different platforms and services. Users can easily set up and customize their email, chat, and calendaring functions to suit their needs.

The program is not just about email; it also supports newsfeeds and chat functionalities, making it a versatile choice for communication. Thunderbird's commitment to user freedom and choice is evident in its design, promoting a user-friendly experience while focusing on security and stability. This makes Mozilla Thunderbird ESR a valuable utility for those seeking a dependable and customizable email solution.

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Is Mozilla Thunderbird ESR he safe?

100/100

Score result: Clean

This file passed a comprehensive security scan using VirusTotal technology. It is safe to download.

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Scan Info

Last scan
Wednesday, January 7, 2026
Scan provider
VirusTotal · Full report

File Integrity

File
140.6.0.exe
SHA256
9a42c93f2e44879dfc31121932652bd4a83e05eb2409abcbc2b5b005bdb904ab
SHA1
9fc23600d57fc915ccc59d7e45602bda28c05a87

Softonic security commitment

Mozilla Thunderbird ESR he has been thoroughly scanned by our advanced security systems and verified by industry-leading partners. This file comes from the official developer and has passed all our security checks, showing no signs of viruses, malware, or spyware. For more information, visit our Security and Trust Center