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Sender Verification Anti-Phishing Extension Requires Restart

Protects you from phishing attacks by verifying the From: address domain name of emails as you read them. Sender Policy Framework (SPF) and DNS-based reputation lists are used.

Rated 4 out of 5 stars (20)
15 users

NirvanaHQ Requires Restart

NirvanaHQ for Thunderbird

Not yet rated
14 users

Force Authentication at Startup. Requires Restart

Always ask password and hide UI at the startup.

Rated 5 out of 5 stars (1)
14 users

Mukparasi Korean-English Dictionary File Requires Restart

A Korean-English dictionary file for Mukparasi.

Not yet rated
14 users

Submit Word (Romanian) Requires Restart

An extention that allows users to submit words for inclusion in the Romanian dictionary.

Rated 5 out of 5 stars (3)
14 users

Mailopen Requires Restart

Open an email file from the commandline

Not yet rated
14 users

Habu Requires Restart

*This extension was formerly known as Okopipi*

Please be sure to visit the homepage and forums to provide your input for the future of Habu.

Support can be found at http://forums.mosinu.com/viewforum.php?f=5

Rated 4 out of 5 stars (18)
14 users

Headers Toggle Requires Restart

Gives Thunderbird a keyboard shortcut (H) to change how headers are displayed.

Rated 4 out of 5 stars (9)
14 users

Last Dictionary for Mail

This extension will remember the last dictionary used in the Mail Compose window and use it when composing new messages.

Not yet rated
13 users

Go Google

Open google instantly with this super fast add on.And its just < 10KB.!
No need to type google in your address bar anymore.Just try this awesome to open up google instantly.

Rated 5 out of 5 stars (2)
13 users

Don't Send Linked Files Requires Restart

Prevents sending of linked files if they are file: URLs.

Rated 1 out of 5 stars (1)
13 users

Datodo Requires Restart

La gestion de tâches, simple et rapide.

Not yet rated
13 users

PassToScript extension Requires Restart

Extension to pass e-mail in eml (raw) format directly to the script specified

Rated 2 out of 5 stars (2)
13 users

ThunderBridge Requires Restart

P2P e-mail delivery.

Rated 2 out of 5 stars (3)
13 users

DSN Settings Requires Restart

Adds user interface settings for Delivery Status Notification (DSN) requests. This addon is usefull for settings for Delivery Notification request and better experience with Notification Viewer addon.

Rated 5 out of 5 stars (2)
13 users

XML Digital Signature Tool Requires Restart

XML Digital Signature Tool is a Firefox add-on for processing Digital Signature in XML documents
(Please read the installation instruction in the "Developer Comments" section before downloading)

Rated 5 out of 5 stars (4)
13 users

Options Toolbar Button Requires Restart

This is a small devision of Michael Buckley's Toolbar Buttons extension. https://addons.mozilla.org/firefox/2377/ or http://codefisher.org/toolbar_button/

Rated 5 out of 5 stars (2)
13 users

Display mailing list header Requires Restart

This extension implements RFC 2369 for Thunderbird: Special mailing list header fields in the mail are parsed, and the links are displayed in the extended header view. You can click them to simply go to the archive, request help or unsubscribe.

Rated 3 out of 5 stars (7)
13 users

PONG! Multiplayer Requires Restart

Play a game of PONG! while you are waiting.

Rated 5 out of 5 stars (7)
13 users

Open Long Url Requires Restart

Adds an option to your File menu to allow you to open long, multi-line...

Rated 5 out of 5 stars (7)
13 users