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Toggle Headers

Allows to switch between the normal header view and viewing all headers when viewing a message by using a keyboard shortcut (Ctrl+H).

Rated 4 out of 5 stars (13)
1,126 users

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Expertspam

Report spam, false-positives or phishing back to your antispam provider.

Rated 2 out of 5 stars (11)
145 users

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Received

Displays the "Received" header parsed with a regular expression.

Rated 5 out of 5 stars (4)
139 users

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filemail

Move mails to the same folder where previously mails have been moved from this author by hitting a single key

Rated 4 out of 5 stars (16)
69 users

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RemindIt

Help in reminding mails to be answer or sent again. Choose a reminder date for each received or send message that are highlighted in the message list, depending on their status (expired, soon to exprire, to be reminded). Sending a reminder is eased.

Rated 3 out of 5 stars (27)
632 users

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Mail Sent Notifier

Allows to notify a HTTP-GET based webservice after successfully sent an email, e.g. for time registration systems.

Not yet rated
58 users

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URL Link

URL Link is a small Thunderbird extension that allows you to select a non-URL in a mail/news message or web-page, and open it in a browser window.

Rated 4 out of 5 stars (6)
1,970 users

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Open With

Open With can open your web links in any browser installed on your computer.

*Open With is no longer maintained.*

Rated 3 out of 5 stars (24)
916 users

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EnhancedReplyHeaders

Customizable headers for Thunderbird

Rated 4 out of 5 stars (6)
175 users

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FDK KIM Plugin

Dieses Plugin setzt automatisch die KIM-Header und den Betreff passend zu ihrem Anhang.

Anhängen werden analysiert und falls genau eine valide p7s Datei erkannt wird, werden die entsprechenden Daten automatisch gesetzt.

Not yet rated
50 users

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ProtonMail Encryption Status

When using ProtonMail Bridge to integrate Mozilla Thunderbird withProtonMail, it's not easy to tell which emails were end-to-end (E2E) encrypted. This add-on puts an icon in the toolbar above every message to show you its encryption status.

Rated 5 out of 5 stars (5)
612 users

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EagleCloud Extension

Works along with EagleCloud Information Security product to secure sensitive information based on company policy.

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2 users

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Toggle Line Wrap

Toggle wrapping of long lines in the message composition window when writing plaintext messages. Wrapping can be controlled via a toolbar button and a keyboard shortcut.

Rated 3 out of 5 stars (12)
803 users

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Mark GMail Read

Automatically marks all messages in [Gmail] folder as read.

Rated 5 out of 5 stars (1)
102 users

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WhatsApp - Thunderbird

Adds browser action icon to toolbar to open WhatsApp.

Rated 1 out of 5 stars (1)
214 users

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✨ Awesome Emoji Picker ✨

Modern, nice emoji picker that you can use to find and select emojis. It will be copied to your clipboard or even directly inserted into the e-mail, when you click on it.

You will certainly like it.

Rated 5 out of 5 stars (7)
4,417 users

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Open Google Messages

Adds an icon on the spaces toolbar to quickly open Google Messages

Rated 5 out of 5 stars (2)
124 users

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Open Google Tasks

Adds an icon on the spaces toolbar to quickly open Google Tasks

Rated 5 out of 5 stars (2)
616 users

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Safelinks Cleanup

Cleans up Outlook’s “safelinks” tracking.

Minimal code to allow for easy auditing of the add-on. The only code is:
https://github.com/Cimbali/safelinks-cleanup/blob/main/src/background.js

Not yet rated
39 users

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Dysclusif

Simplifier la lecture de mails en supprimant l'écriture inclusive

Rated 5 out of 5 stars (1)
9 users

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