Mozilla Thunderbird Beta for Windows

Used Mozilla Thunderbird Beta for Windows?

Beta or prerelease software is not intended for inexperienced users, as the software may contain bugs or may potentially damage your system. We strongly recommend that users exercise caution and save all mission-critical data before installing or using this software.

Editors’ Review

Download.com staffFebruary 26, 2026

This beta version of Thunderbird is for testers to evaluate new features and provide feedback. It includes enhancements for Windows and Linux users.

Pros
- Windows 7 Jump List integration
- Improved Microsoft Outlook import
- Linux default mail client check improved
Cons
No Cons available

Mozilla Thunderbird Beta for Windows

Used Mozilla Thunderbird Beta for Windows?

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Full Specifications

GENERAL

Release: October 19, 2020

Latest update: February 26, 2026

Version: 82.0b3

OPERATING SYSTEMS

Platform: Windows

Operating System

Windows 10
Windows 8
Windows 8.1
Windows 7

Additional Requirements: None

POPULARITY

Total Downloads: 7,013

Downloads Last Week: 4

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Last Updated

User Reviews

3/5

2 User Votes

Smooth and reliable!!
Bill380USOctober 23, 2012
Pros
Very easy to use. It is also quite intuative, good job designers.
Cons
I wish it had a one button, ie. 'Spam Button' where you could high-light a spam e-mail, and hit the spam button and it filters out those e-mails sent from the same source--forever. Having to go through the steps of setting up manual filtes 20 times a day sux.
Summary
I have used Thunderbird for a couple of years and have up-dated it every time I can and I love it. Great program, and again, cudos designers!!
Might be okay if it's your first ever email program?
paulbrowOctober 11, 2012
Pros
It's free, only one I that I found.
Cons
I couldn't get it to import existing emails from windows.
Summary
I'll try again when bugs are worked out... maybe.

Developer’s Description

Experience Thunderbird's latest innovations and contribute with constructive evaluation input and performance feedback.

Mozilla Thunderbird Beta is intended for developers and members of our testing community to use for evaluation and feedback. The beta version features Windows 7 Jump lists, fixes when importing email from Microsoft Outlook, and default mail client check now works with newer Linux distributions.