Message Composition

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RM: EXTERNAL: Requires Restart

Removes 'EXTERNAL: ' from the start of an email subject if it is preceded by 'RE:' or 'FWD:' (case insensitive). The removal is done after the 'Send' button is pressed.

Not yet rated
2 users
Added January 28, 2016

Check Attachment before Send Requires Restart

Confirms to send a mail with any attachment.

Not yet rated
53 users
Added December 16, 2015

BccBlocker Requires Restart

A ThunderBird extension to prevent the use of the Bcc field.

Bcc is the worst thing ever.
It kills transparency inside an organization.
If you use the Bcc feature, you should ask yourself why..

Not yet rated
3 users
Added November 14, 2015

MEGAbird Requires Restart

Add MEGA support to Thunderbird's Filelink feature.

Rated 5 out of 5 stars (8)
1,677 users
Added November 11, 2015

ThunderBird Ticker Requires Restart

Extension for creating support tickets based on mail.

Not yet rated
9 users
Added September 10, 2015

Sensitivity Header Requires Restart

Implement the "Sensitivity" header for outgoing messages (described in RFC 4021 section 2.1.55).
This allows the user to select Private / Personal / Company-Confidential (or none) for an outgoing message.

Rated 4 out of 5 stars (1)
85 users
Added August 13, 2015

AFP protocol enabler

Enable afp protocol (afp://)

Not yet rated
34 users
Added August 4, 2015

QFO - Quick Fuck Off Requires Restart

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 4 out of 5 stars (2)
51 users
Added June 5, 2015

Rage Hoye Requires Restart

Prevents you from sending offensive mails based on a keyword list

Not yet rated
0 users
Added May 25, 2015

ReplyWithHeader Requires Restart

Outlook style headers and few goodies for Thunderbird & Postbox.

Rated 5 out of 5 stars (10)
1,381 users
Added April 20, 2015

gLOC for Thunderbird Requires Restart

gLOC - a link that lets you find your way! Once you create your own gLOCs at https://app.gloc.io, you can easily insert them into your emails in Thunderbird. You can also use gLOCs someone else shared with you. Product of Wayz Solutions GmbH Germany.

Not yet rated
2 users
Added April 17, 2015

SendToSecondEmail Requires Restart

This Extension lets you send Mails to both, first and second email address...

Rated 4 out of 5 stars (2)
37 users
Added March 7, 2015

Extra Format Buttons Requires Restart

Adds a font size (in pixels), strikethough, subscript and superscript buttons to Thunderbird's Compose Window.

Rated 4 out of 5 stars (11)
5,630 users
Added February 26, 2015

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
43 users
Added February 11, 2015

Nextcloud for Filelink Requires Restart

"Nextcloud for Filelink" is an Open Source Thunderbird extension which makes it easy to send large attachments with Thunderbird by uploading them first to a Nextcloud server and by then inserting the link into the body of your email.

Rated 3 out of 5 stars (23)
3,950 users
Added October 14, 2014

Email signature for Thunderbird - WiseStamp Requires Restart

Switch Thunderbird email signatures. Supports Gmail, Yahoo, AOL & Outlook webmails. Youtube, Facebook, Twitter icons & more

Rated 2 out of 5 stars (6)
3,706 users
Added October 5, 2014

Single Domain Requires Restart

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)
239 users
Added September 26, 2014

Resubmit Requires Restart

(Re)submit multiple messages to a predefined recipient(s)

Not yet rated
52 users
Added September 26, 2014

MultiLDAP2 Requires Restart

Based on TrustedBird/MiliMail work. Patched to work with lastest Thunderbird.
Permits to use several LDAP directories simultaneously for address autocompletion.

Rated 5 out of 5 stars (1)
409 users
Added September 24, 2014

Emoji Menu Requires Restart

Adds the ability to easily insert emojis into your composed messages in Thunderbird.

Rated 4 out of 5 stars (7)
5,131 users
Added September 14, 2014