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Sent-By-User column Requires Restart

Adds a new column in message list-view, that will display the name of the user who sent the mail (read from a message header).
Manual configuration required. ONLY FOR THUNDERBIRD.

Rated 5 out of 5 stars (1)
35 users

Message Level Authentication Requires Restart

Authenticates mail from Message Level Network users, Mail Reputation provided by Sender Score for each message and Anti-Phishing Data from PhishTank. Registration is FREE but not required...

Rated 2 out of 5 stars (13)
35 users

StickyCharset Requires Restart

Allows persistent charset changes on individual messages. For use with messages that have erroneous charset header...

Rated 3 out of 5 stars (1)
35 users

TB Menubar Unread Notifier Requires Restart

Output the number of unread messages in all inboxes into the temporal file /tmp/testUnread. As a result, this output file can serve as an input for other applications to read and show notification either on a dock bar or on the menubar.

Rated 3 out of 5 stars (4)
34 users

Follow Broken Lotus Notes Links Requires Restart

Fixes the HREF on MASFLOW links in emails from Lotus Notes.
If you dont know what that is you do not need this.

Not yet rated
34 users

Ubuntu Unity unread count and quicklist Requires Restart

Notify Unity of new mails in Thunderbird. Also, right click Thunderbird icon and get new quicklist items: Compose new mail and Contacts.

Based in awn-notif by Thesa aka Florian Birée

Rated 5 out of 5 stars (9)
34 users

S/MIME Security for Multiple Identities Requires Restart

Adds S/MIME Security configuration to the multiple identities dialog.
Meanwhile this feater has been integrated into Thunderbird 3

Rated 5 out of 5 stars (7)
34 users

ClassicFox Requires Restart

ClassicFox fixes problems with the appearance of the default theme in Windows Classic.

Rated 5 out of 5 stars (5)
34 users

The Book of Mozilla, 15:1 in Japanese

The Book of Mozilla, 15:1 in Japanese

Not yet rated
33 users

NewsWorthy for Thunderbird 1.5 Requires Restart

Making Thunderbird newsworthy (Usenet client support)...

Rated 4 out of 5 stars (12)
33 users

Path Linker Requires Restart

メール本文中のファイルパスっぽいものをリンク化して関連付けで開けるようにします

Not yet rated
32 users

Bosnian spell checker Requires Restart

This is a comprehensive spell checker that contains more than 300 000 words of the Bosnian language.

Rated 5 out of 5 stars (1)
32 users

Hyperactive

Scans hyperlinks in composed messages and alerts if one of the hyperlinks is broken.

Rated 4 out of 5 stars (1)
32 users

Asystent Nauki Angielskiego Requires Restart

Pomoc w nauce angielskiego i rozumienia tekstów przez tłumaczenie pojedynczych, rzadkich słów.

Not yet rated
32 users

Timer Fire Requires Restart

A simple tool to trigger some of the background timers.

Rated 5 out of 5 stars (1)
31 users

Fix Tb Titlebar Extension Requires Restart

You can now modify the Titlebar of TB's main...

Rated 3 out of 5 stars (5)
31 users

AastraClickToCall Requires Restart

Converts telephone numbers into clickable links for use with Aastra IP Phones

Not yet rated
30 users

Notificaciones de chat

Muestra una notificación cuando se recibe un mensaje de chat.

Not yet rated
30 users

BOINC Stats 2 Requires Restart

Displays your Total and Recent Average Credits for BOINC distributed computing projects in the status bar.

Rated 5 out of 5 stars (4)
30 users

forcebutton Requires Restart

This add-on can resend mails, so you "force" the other side to answer. It could be useful at corporate environment.

Rated 2 out of 5 stars (1)
30 users