Message Composition

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Mail Merge Featured

Mass Mail and Personal Mail

Rated 5 out of 5 stars (142)
51,088 users
Updated July 25, 2016

MultiTemplateLoader

Manages & applies multiple HTML templates when creating/replying messages.

Templates may be either local files or online links (http:// or ftp://). Up to 9 templates can be defined and easily switched, also using shortcut keys.

Not yet rated
1 user
Updated July 23, 2016

Identity Checker

This add-on checks to sender identity when send a message.

Not yet rated
4 users
Updated July 22, 2016

Tategaki

Tategaki allows vertical writing-mode on mail compose window.

Not yet rated
14 users
Updated July 22, 2016

Send Later

True "Send Later" functionality to schedule the time for sending an email.

Rated 5 out of 5 stars (69)
60,937 users
Updated July 21, 2016

Emoji

Add emojis to your e-mails.

Not yet rated
440 users
Updated July 18, 2016

SmartTemplate4

SmartTemplate4 offers an easy way to automatically create customized replies by auto-inserting various mail headers. Templates can be created for every account as well as for the default (all email accounts). Also supports the Stationery Add-on.

Rated 5 out of 5 stars (51)
18,987 users
Updated July 11, 2016

ReplyWithHeader

Outlook style headers and few goodies for Thunderbird & Postbox.

Rated 4 out of 5 stars (5)
586 users
Updated July 9, 2016

ThunderHTMLedit

Thunderbird HTML editor. This add-on adds a HTML tab to the composition window where you can see and edit the HTML source of the message.

Rated 5 out of 5 stars (1)
447 users
Updated July 5, 2016

ConferenceCall.nl templates No Restart

Voegt de handige e-mail templates toe aan de knoppenbalk van Thunderbird om deelnemers aan uw conference call uit te nodigen.

Not yet rated
2 users
Updated June 21, 2016

Telefonkonferenz.de-Vorlagen No Restart

Durch das Plug-in werden unsere praktischen E-Mail-Vorlagen Ihrer Thunderbird-Symbolleiste hinzugefügt

Not yet rated
4 users
Updated June 20, 2016

ConferenceCall.co.uk templates No Restart

This plugin adds our savvy email templates to your Thunderbird toolbar.

Not yet rated
12 users
Updated June 20, 2016

Color Text Compose Buttons

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)
1,932 users
Updated June 6, 2016

QFO - Quick Fuck Off

This extension serves the purpose of providing instant access to the FOAAS web service. FOAAS (Fuck Off As A Service) provides a modern, RESTful, scalable solution to the common problem of telling people to fuck off.

Rated 3 out of 5 stars (3)
54 users
Updated June 2, 2016

Clippings

Save frequently-entered text for pasting later.

Rated 4 out of 5 stars (180)
33,431 users
Updated May 13, 2016

CategoryManager

Category manager for CardDav 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 (9)
2,294 users
Updated May 2, 2016

DL for Thunderbird

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

Rated 5 out of 5 stars (3)
1,539 users
Updated April 30, 2016

Send Later Button

A simple button to invoke the (already existing) send later functions.

Not yet rated
1,473 users
Updated April 29, 2016

Single Domain

Warns if you send mail from or to a specified domain. If there are multiple accounts in your profile, you can isolate one so that you can't send mail to that domain from outside or vis versa without warning.

Rated 5 out of 5 stars (1)
164 users
Updated April 26, 2016

BorderColors GT

How many time you sent an email from your wrong email address?
This add-ons allows you assign a different color to the compose window border for each of your email addresses. So you can immediately view from what account are you writing.

Rated 4 out of 5 stars (8)
4,062 users
Updated April 25, 2016