Message Composition

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BorderColors GT Requires Restart

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 (10)
46 users

CatchAll Bird

This extension improves the use of CatchAll-Addresses with Thunderbird.
It handles incoming messages addressed to all prefix@domain.tld for a fixed domain.
For each prefix the AddOn can create a new identity and folder.

Rated 5 out of 5 stars (4)
85 users

CategoryManager

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 (23)
7,636 users

changeQuote

It's an extension that changes the format of reply header.
You can choose between the standard Thunderbird reply header, a detailed reply header or a Customized reply header.
You can configure it in the Tools ->Add-on Preferences -> changeQuote.

Rated 4 out of 5 stars (21)
1,414 users

Check and Send

Check the message contents and addresses before you send the message...

Rated 4 out of 5 stars (49)
20,176 users

Check Attachment before Send Requires Restart

Confirms to send a mail with any attachment.

Rated 5 out of 5 stars (1)
1 user

Clippings for Thunderbird

Save frequently-entered text for pasting later.

Rated 4 out of 5 stars (8)
1,500 users

CloneMessage

When composing an email, CloneMessage allows you to duplicate the current state of the email.

Rated 5 out of 5 stars (1)
124 users

CodeHighlight Requires Restart

highlight code in email.

Rated 3 out of 5 stars (1)
4 users

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 (23)
307 users

Colored Recipient Type Requires Restart

Customize background-color of the recipient address fields for each recipient types of To:, Cc:, Bcc:.Customize background-color of the recipient address fields for each recipient types of To:, Cc:, Bcc:.

Rated 4 out of 5 stars (4)
101 users

Compose Responsive Images

When writing new emails, newly inserted images are made responsive by setting style="max-width:100%" and removing width/height attributes.

Rated 5 out of 5 stars (1)
138 users

composeSelectMacro

定型文4つ保存しておいて、メールを作成する時にそのテキスト文を挿入できるツールです
You can prepare four fixed phrases, select them when composing an email, and insert them in the body of the email.

Not yet rated
30 users

ConferenceCall.co.uk templates

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

Not yet rated
0 users

ConferenceCall.nl templates

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

Not yet rated
0 users

Contact Finder

Autocomplete a list of contacts when sending a message by searching their name in the address book.

Not yet rated
364 users

Copiar Assunto Requires Restart

Adiciona um botão para copiar o Assunto do email selecionado para a área de transferência

Add a button to copy the Subject line of the selected email to the clipboard

Not yet rated
0 users

Copy Address

Copy email address to clipboard.

Rated 4 out of 5 stars (12)
1,694 users

Copy Message ID

Adds a button to the message view toolbar to copy the message ID to the clipboard. This is useful when sending email replies via the command line.

Rated 5 out of 5 stars (3)
316 users

Custom Address Sidebar Requires Restart

Allow you to help address sidebar more useful.

Rated 5 out of 5 stars (22)
503 users