880
Mozilla
402,280
Open source
The email, calendar, and contacts app that maximizes your freedom.
4
Felix Geyer
152
Thunderbird-Tray is a system tray launcher tool for Mozilla Thunderbird.
Aron Rubin
15
Freeware
LookOut allows Thunderbird to interface with Microsoft's mail tools.
Arnaud Abelard
Freeware
It displays the current status of your IMAP quota in thunderbird's status bar.
4
KirySoft S.R.L.
679
Freeware
KLS Mail Backup can restore your Mail, Thunderbird, and Firefox profile files.
69
Nylas Inc.
23
Open source
Open source mail client with numerous personalization options.
1
Mozilla
351
Open source
An open source, Mozilla Thunderbird-based mail, news and chat client.
87
PCVARE Solutions
95
Shareware
Convert Thunderbird to Windows Live Mail. Convert Thunderbird to Eudora.
KDETools Thunderbird to Outlook Converter
Shareware
Convert your mail from Mozilla Thunderbird to Outlook with Thunderbird Converter.
zebNet® Ltd
23
Freeware
Back up and recover e-mail files for the Thunderbird e-mail client.
MDaemon Data Migration
Shareware
MDaemon Data Migration to Outlook, Eudora, Mac Mail, Thunderbird, Windows Mail.
3
BitRecover
4
Shareware
Software to Convert Zimbra to Outlook, Thunderbird, Windows Mail, Apple Mail.
Timothy Stranex
13
Open source
It is a set of open-source Python bindings for The Open Dynamics Engine.
91
QUALCOMM Incorporated
3,625
Shareware
Eudora is a mail and news application based on Thunderbird client from Mozilla.
4
KhmerOS
1,266
Open source
Moyura is a very advanced e-mail client based on the code of Thunderbird.
