Add-ons
Message Composition
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MEGAbird
Requires Restart
Add MEGA support to Thunderbird's Filelink feature.
ThunderBird Ticker
Requires Restart
Extension for creating support tickets based on mail.
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.
No longer maintained: See below.
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.
Rage Hoye
Requires Restart
Prevents you from sending offensive mails based on a keyword list
ReplyWithHeader
Outlook style headers and few goodies for Thunderbird.
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.
SendToSecondEmail
Requires Restart
This Extension lets you send Mails to both, first and second email address...
Extra Format Buttons
Requires Restart
Adds a font size (in pixels), strikethough, subscript and superscript buttons to Thunderbird's Compose Window.
Path Linker
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.
Email signature for Thunderbird - WiseStamp
Requires Restart
Switch Thunderbird email signatures. Supports Gmail, Yahoo, AOL & Outlook webmails. Youtube, Facebook, Twitter icons & more
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.
Resubmit
Requires Restart
(Re)submit multiple messages to a predefined recipient(s)
MultiLDAP2
Requires Restart
Based on TrustedBird/MiliMail work. Patched to work with lastest Thunderbird.
Permits to use several LDAP directories simultaneously for address autocompletion.
Emoji Menu
Requires Restart
Adds the ability to easily insert emojis into your composed messages in Thunderbird.
Synnefo for Filelink
Requires Restart
Add Synnefo support to Thunderbird's Filelink feature.
tuneMDNDSN
Requires Restart
fix behavior of notifications checkboxes in compose window when editing msg as new
CodeHighlightTo create your own collections, you must have a Mozilla Add-ons account.
