Anthony C Howe.
Freeware
A Thunderbird ™ extension that provides purge and delete-junk toolbar buttons.
Arnaud Abelard
Freeware
It displays the current status of your IMAP quota in thunderbird's status bar.
Pawel Krzesniak, R Wahl
Freeware
Mail Redirect allows you to redirect mails to other people.
GlexSoft LLC
104
Shareware
This is a program for Thunderbird to Outlook conversion and e-mail migration.
57
zebNet Ltd.
18
Freeware
Free backup & recovery solution designed for Mozilla Thunderbird.
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.
4
KirySoft S.R.L.
679
Freeware
KLS Mail Backup can restore your Mail, Thunderbird, and Firefox profile files.
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.
2
Mozilla
31
Freeware
Lanikai is a preview release for the upcoming new Thunderbird e-mail client.
2
Stellar Data Recovery Inc.
78
Shareware
Convert MBOX files of more than 17 email clients like Thunderbird, Apple Mail.
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.
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.
