Comprehensive Review of Mozilla Thunderbird ESR

Mozilla Thunderbird ESR is a free and open-source email client designed for Windows platforms, emphasizing ease of use and customization. This version, known as the Extended Support Release (ESR), is tailored for users who prefer to receive new features annually while benefiting from monthly stability and security updates. It supports various communication methods including email, newsfeeds, chat, and calendaring, making it a versatile tool for managing correspondence.

One of Thunderbird's core principles is its commitment to open standards, promoting interoperability among different platforms and services. Users can enjoy a flexible communication experience, free from the limitations of closed systems. With its intuitive interface and robust feature set, Thunderbird ESR is an excellent choice for those seeking a reliable and customizable email client.

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Is Mozilla Thunderbird ESR hr 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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Last scan
Wednesday, January 7, 2026
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File Integrity

File
140.6.0.exe
SHA256
c40176d4e257281c23b660d96c312873f1ef896cd8a54ca3af8332d55a5cbfda
SHA1
b06bc8cfe8cb518e4fbccc4396538b6837fee113

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Mozilla Thunderbird ESR hr 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