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Next Unread Group (Mark All Read)

Adds a Group button, marks current newsgroup or folder as read and moves to the next unread message

Rated 5 out of 5 stars (3)
130 users

Mark GMail Read

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

Rated 5 out of 5 stars (1)
116 users

Lojban spell check dictionary

Spell check dictionary for Lojban.

Not yet rated
2 users

AutoMover

An extension that auto-moves new emails in folders

Not yet rated
87 users

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 (18)
834 users

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)
2,088 users

Night and Day Dynamic

A theme that switches between sun and moon based on time of day.

This is the canonical example dynamic theme published by Mozilla: https://github.com/mdn/webextensions-examples/tree/master/dynamic-theme

Rated 3 out of 5 stars (2)
879 users

Auto Profile Picture

Enhance your Thunderbird inbox with automated profile images, adding company logos or avatars to emails and contacts while supporting BIMI

Rated 4 out of 5 stars (13)
534 users

BetterUnsubscribe

Adds a convenient button to the navigation bar, appearing whenever an unsubscribe option is detected in an email.

Rated 5 out of 5 stars (8)
1,091 users

EnhancedReplyHeaders

Customizable headers for Thunderbird

Rated 4 out of 5 stars (6)
196 users

Google Contact - raccourci

Ajoute une icône dans la barre d'espaces pour ouvrir rapidement Google Contact.

Not yet rated
192 users

Tomba : Email Finder

Data to power your entire business, with just one click.

Not yet rated
27 users

Open Google Messages

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

Rated 5 out of 5 stars (3)
241 users

Open Google Tasks

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

Rated 4 out of 5 stars (4)
1,143 users

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
50 users

Dysclusif

Simplifier la lecture de mails en supprimant l'écriture inclusive

Rated 5 out of 5 stars (1)
10 users

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.

Not yet rated
15 users

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.

Not yet rated
10 users

WhatsApp - Thunderbird

Adds browser action icon to toolbar to open WhatsApp.

Rated 1 out of 5 stars (1)
205 users

Threaded List Switch

Switch threaded message list on or off.

Rated 5 out of 5 stars (2)
241 users