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Editors' Review · July 22, 2025

In-Depth Review of Mozilla Thunderbird ESR

Mozilla Thunderbird ESR is a robust open-source email client tailored for Windows users, providing a comprehensive suite for managing email, newsfeeds, chat, and calendars. This version is designed for those who prioritize stability and security, receiving annual feature updates along with monthly security patches. The application emphasizes open standards, which enhances its compatibility across different platforms, making it an excellent choice for users seeking flexibility in their communication tools.

The user interface of Thunderbird is intuitive, accommodating both beginners and seasoned users. It allows for the management of multiple email accounts and includes key functionalities such as message encryption, advanced search options, and efficient calendar and task management. As a free utility, Thunderbird ESR not only prioritizes user freedom but also delivers a customizable experience that caters to diverse communication needs.

Technical

Title
Mozilla Thunderbird ESR lt 128.11.0 for Windows
Requirements
Windows 11
License
Free
Latest update
Author
Mozilla Foundation
SHA-1
2e8cb603654a1c138e566c92aa7e545419fbd8c2
Filename
128.11.0.exe

Program available in other languages



Changelog

We don’t have any change log information yet for version 128.11.0 of Mozilla Thunderbird ESR lt. Sometimes publishers take a little while to make this information available, so please check back in a few days to see if it has been updated.

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