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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 4 out of 5 stars (13)
864 users
Works with Thunderbird 91.0 - 128.*
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Zivver for Thunderbird

This extension automatically detects Zivver messages and decrypts them on-the-fly using the Zivver API. Messages are decrypted only when actively displayed by the user and are never stored locally.

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11 users
Works with Thunderbird 78.0 - *
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White Screen

Use white screen test to detect dead pixels, stuck pixels, and other display defects.

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13 users
Works with Thunderbird 60.0 - *
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Black Screen

Use black screen test to detect dead pixels, stuck pixels, and other display defects.

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29 users
Works with Thunderbird 60.0 - *
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BulkDelete

Thunderbird MailExtension designed to help you efficiently bulk delete emails with multiple filtering options.

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25 users
Works with Thunderbird 115.0 - *
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Interstellar Alliance Social Experiment Step 3

Send the Interstellar Alliance Social Experiment Step 3 letter as an email to speficied recipient.

See https://www.bashar.org/socialexperiment for more information.

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0 users
Works with Thunderbird 115.0 - *
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Mark GMail Read

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

Rated 5 out of 5 stars (1)
113 users
Works with Thunderbird 102.0 - *
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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 (6)
681 users
Works with Thunderbird 66.0 - *
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EnhancedReplyHeaders

Customizable headers for Thunderbird

Rated 4 out of 5 stars (6)
200 users
Works with Thunderbird 102.0 - *
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WhatsApp - Thunderbird

Adds browser action icon to toolbar to open WhatsApp.

Rated 1 out of 5 stars (1)
217 users
Works with Thunderbird 78.0 - *
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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.

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61 users
Works with Thunderbird 100.0 - *
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AutoMover

An extension that auto-moves new emails in folders

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93 users
Works with Thunderbird 78.0 - *
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GMail Labels

Shows GMail labels in each message's headers panel. When using Thunderbird with a Gmail account, it is not possible to guess which Gmail labels a message was applied (and in which folders it can be found). This extension provides this information

Rated 4 out of 5 stars (19)
879 users
Works with Thunderbird 78.0 - *
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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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4 users
Works with Thunderbird 68.0 - *
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AI Email Assistant

Automatically generate email responses using AI through an external API integration. This add-on sends emails to an API and inserts the AI-generated response into your reply.

Rated 5 out of 5 stars (1)
18 users
Works with Thunderbird 115.0 - *
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Hide Duplicates From 'All Mail'

Hides duplicate emails from the 'All Mail' folder upon clicking on a result from Global Search, so that if one email is in both the 'All Mail' folder (e.g. of Gmail) and another folder (e.g. 'Sent'), it'll only show the email from the other folder.

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17 users
Works with Thunderbird 115.0a1 - 122.*
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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 (3)
244 users
Works with Thunderbird 102.0 - *
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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
56 users
Works with Thunderbird 91.0 - *
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Open Google Tasks

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

Rated 4 out of 5 stars (4)
1,257 users
Works with Thunderbird 102.0 - *
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Dysclusif

Simplifier la lecture de mails en supprimant l'écriture inclusive

Rated 5 out of 5 stars (1)
10 users
Works with Thunderbird 78.0 - *
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