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Mozilla Thunderbird Eclipse ESR Portable 140.1.0

Author: Mozilla & PortableApps (John T. Haller)
Date: 07/30/2025
Size: 78 MB
License: Open Source
Requires: 11|10
Downloads: 278 times

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Download Mozilla Thunderbird Eclipse ESR Portable

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Introducing Mozilla Thunderbird Eclipse ESR Portable

Mozilla Thunderbird Eclipse ESR Portable is a highly customizable email application that offers a wide range of features to improve the user experience. Its versatility allows users to tailor the application to their specific needs, making it an excellent choice for managing email effectively.

Eclipse ESR Versus Nebula ESR

128+ Nebula ESR: This version is part of the ESR 128 cycle, which started in July 2024 and will likely finish around September 2025.

140+ Eclipse ESR: This is the latest ESR release, which began in June 2025. It will be supported for about one year.

Since this channel for Mozilla Thunderbird Eclipse ESR Portable is newer releases, it incorporates all the features and improvements that were introduced in Thunderbird releases up to version 140.

Some notable new features for this release ESR series include:

Vertical tabs layout option

You can unload tabs from memory without closing them

It's easier to add custom search engines

Tab grouping.

Improved Reader View with more options for text and layout

HTTPS-First mode

Bounce Tracking Protection (in Strict ETP mode)

HTTPS is now the default protocol shown in the address bar

You can view more change details here.

Speed, Safety, and all the Things You Need

This email client emphasizes safety, speed, and user-friendliness, making it an excellent choice for both individual users and organizations. Among its numerous built-in features are a straightforward message search, customizable views, and support for IMAP, POP, and RSS feeds.

The latest release of Mozilla Thunderbird Eclipse ESR Portable includes a single dynamic toolbar that adjusts to display frequently used and contextually relevant options based on the currently active tab or workspace. You can further refine your experience by customizing the toolbar and window layout to align with your specific workflows. The graphical user interface (GUI) has also undergone a complete redesign over earlier versions, simplifying navigation and enhancing its visual appeal.

Mozilla Thunderbird Eclipse ESR Portable continues to support a wide range of Mozilla Add-Ons, enabling you to enhance the application's functionality and tailor it to your specific needs.

Geek Verdict

This email client is not only reliable but also prioritizes security, making it a solid choice for managing organizational emails. Key safety features include an efficient junk mail filter that analyzes incoming messages to detect potential spam. Users also have the ability to manually filter out any messages that the system might miss. Furthermore, Thunderbird employs robust security measures, including digital signing, message encryption, S/MIME support, certificate integration, and compatibility with security devices commonly used by enterprises and government agencies.

Available as an installer as well as for Linux and Mac.

Similar:
Mozilla Thunderbird Has Both Junk and Spam Folders

Version History for Mozilla Thunderbird Eclipse ESR Portable:
https://www.thunderbird.net/en-US/thunderbird/140.1.0esr/releasenotes/

Screenshot for Mozilla Thunderbird Eclipse ESR Portable

Official Download Mirror for Mozilla Thunderbird Eclipse ESR Portable

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