Message Composition

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Reply to All as Cc Requires Restart

Send a reply for recipients as CC except the sender, when you do "Reply to All".

Rated 4 out of 5 stars (4)
469 users
Added June 8, 2014

HtmlHighlightr Requires Restart

Provides source code highlighting in editor's "Insert HTML" dialog.

Rated 5 out of 5 stars (1)
120 users
Added May 23, 2014

IMAP Draft Unread Requires Restart

This is a Thunderbird addon that lets you customize the behavior of the IMAP draft unread messages. No more new mail notifications for your drafts!!

Rated 3 out of 5 stars (1)
394 users
Added May 3, 2014

X-Unsent support Requires Restart

Adds support for the X-Unsent header.

Rated 3 out of 5 stars (2)
204 users
Added April 13, 2014

Color Text Compose Buttons Requires Restart

Adds Text Color Buttons in Compose Toolbar and More: Pixel FontSize, Strikethough, Sub & Superscript, Lower & UpperCase. Also provide Tools: Insert iframe, Launch MathType, Maths & Greek Symbols, Load Template Variables and Duplicate Compose Window.

Rated 4 out of 5 stars (20)
2,275 users
Added March 24, 2014

PennyPost Requires Restart

This extension makes it very easy to generate and attach stamps to outgoing mail. It also automatically detects and verifies stamps on incoming emails. The MBound algorithm requires a 16MB fixed table to work, HashCash is more CPU intense.

Rated 5 out of 5 stars (3)
38 users
Added February 19, 2014

Insert Link from Local File Requires Restart

Inserts links from local files via drag and drop on the composition window.

Rated 3 out of 5 stars (3)
434 users
Added February 18, 2014

Attachemnt Encoding Detector Requires Restart

To detect file encoding of attachments, this forces to Thunderbird to use an encoding detector for a specific locale instead of the generic one.

Not yet rated
964 users
Added February 18, 2014

Flex Confirm Mail Requires Restart

Confirm mail address and attachments based on flexible rules.

Rated 1 out of 5 stars (1)
9,988 users
Added February 18, 2014

MALA Hindi Spell Checker by MCRPV, (Anurag Seetha) Requires Restart

MALA (Makhanlal) Hindi Shabd Shodhak to check Spelling of Hindi Unicode Text by Makhanlal Chaturvedi National University of Journalism & Communication, Bhopal, India. Chief Developer - Dr. Anurag Seetha. The program is Released Under the GNU GPL V 3

Not yet rated
6 users
Added January 23, 2014

replyTo Requires Restart

Adds a menuitem to the Mail context Menu to Reply to a different Mailadress

Rated 5 out of 5 stars (7)
357 users
Added December 7, 2013

Inbox Cleaner of expired Emails Requires Restart

Moves expired Emails out of your Inbox!

Not yet rated
42 users
Added November 17, 2013

CategoryManager 2 Requires Restart

Category manager for Thunderbird contacts, also allows to send an email to all members of a category (categories can be used as contact groups).

Rated 5 out of 5 stars (11)
3,377 users
Added November 16, 2013

Highlight External Addresses Requires Restart

This extension helps to warn the user when composing a message to a mixed group of people both in and out of the sender's organization. External addresses are highlighted in orange as a reminder.

Rated 4 out of 5 stars (1)
292 users
Added October 29, 2013

Macro Template

Macro Template is to replace mail templates with macros for date formatting.

Rated 5 out of 5 stars (1)
395 users
Added October 15, 2013

Kmaleon Extension Requires Restart

Con esta extensión podrás hacer una copia de tus emails en el programa kmaleon.

Not yet rated
44 users
Added October 7, 2013

Kmaleon Extension (BETA) Requires Restart

Con esta extensión podrás hacer una copia de tus emails en el programa kmaleon.

Not yet rated
2 users
Added October 2, 2013

Ethical signature Requires Restart

Add a button to the email composition toolbar, which lets you insert an ethical signature.

Not yet rated
42 users
Added August 15, 2013

nomapi Requires Restart

not a mapi plugin

Not yet rated
6 users
Added August 14, 2013

DL for Thunderbird Requires Restart

Allows to convert large attachments to links automatically without 3rd party providers.

Rated 5 out of 5 stars (3)
1,877 users
Added July 9, 2013