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Mozilla Thunderbird 60.7.1
An open-source, free and cross-platform mail client and news reader for most modern operating systems
SPAMfighter Standard 7.6.159
Spam / phishing filter for Outlook/Thunderbird/Live Mail. Download Free!
SysInfo Tools EMLX Converter 19.0
Convert Apple Mail EMLX files into various other platforms like Thunderbird, Zimbra, Outlook, Gmail, Yahoo, etc.
Easily export/import mail from 40+ formats (Outlook, Gmail, Thunderbird, ...)
Mobile Master 8.9.6
The mobile phone and sync device for the mobile/cell phone, device
Add OpenPGP encryption and authentication to the email messages you send from Thunderbird, thanks to this user-friendly extension
Portable Thunderbird 45.6.0/50.0b1 Beta
Portable Thunderbird supports running from removable drives with minimal reconfiguration.
XULRunner 28.0 / 29.0b1 Beta
Bootstrap XUL XPCOM applications that are as rich as Firefox and Thunderbird
Backup & Restore Mozilla profiles
Lightning brings the Sunbird calendar to the popular email client, Mozilla Thunderbird