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OnMail - Quick Access

Quick Access to OnMail in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.

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4 users

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Deselector

Adds a Deselect button to close messages.

Rated 4 out of 5 stars (1)
37 users

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Apply ROT13

Apply ROT13 to selected text in messages.

Select any text in the message body, right-click on the selection to open the context menu and select "Apply ROT13". Alternatively, you can use a configurable keyboard shortcut (Ctrl-Shift-D by default).

Rated 5 out of 5 stars (1)
30 users

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Junk Mail ByeBye

This extension identifies and protects you from spam emails, phishing emails, and other unwanted messages. It is primarily targeted towards filtering out spam in Japanese.

Rated 4 out of 5 stars (1)
260 users

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Mailfence - Quick Access

Quick Access to Mailfence in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.

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6 users

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Microsoft Teams - Quick Access

Quick Access to Microsoft Teams in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.

Rated 2 out of 5 stars (1)
422 users

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Auto Mark As Read

Automatically mark incoming messages as read if they are in one of selected folders.
An attempt to revive & enhance 'Mark Junk Read' by Alex Cabal

Rated 5 out of 5 stars (3)
260 users

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YouTube RSS feed redesign

Adds YouTube thumbnails to RSS feed entries

Rated 5 out of 5 stars (1)
83 users

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Audio Preview

Adds a preview for audio files (wav, ..) to the message view, so it can be played directly.

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115 users

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Google Mail Tab

Button to open Google Mail, supports multiple accounts. Useful if you need to configure mail settings, filters or forwarding in Gmail.

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38 users

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Khmer Spellchecker

Khmer (km-KH) spellchecker by Tim Boeun.

Rated 5 out of 5 stars (2)
8 users

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Uzbek spell checker

This is a spell checker for Uzbek language in Latin script.

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1 user

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Dictionnaire orthographique kikongo

Correcteur orthographique en kituba de RDC, kikongo ya leta

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1 user

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New UNEC

New UNEC is a browser extension that transforms the UNEC student panel into a modern and user-friendly interface. It dynamically replaces the existing webpage’s HTML, CSS, and JS with an improved design, featuring automatic dark mode, language.

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0 users

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Simpler English Dictionary Requires Restart

A Simpler English Spellchecker.

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1 user

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Haitian Creole spell checker

Korektè Òtograf Kreyòl (KÒK) se yon korektè òtograf otomatik gratis nan lang Kreyòl Ayisyen ki develope avèk èd LOGIPAM ak Kevin Scannell
Korektè Òtograf Kreyòl (KÒK) is a free Haitian Creole Spell Checker developed by LOGIPAM and Kevin Scannell

Rated 5 out of 5 stars (1)
15 users

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Azerbaijani Spellchecker

Azerbaijani SpellChecker for Mozilla Firefox. Developed with love by Mozilla Azerbaijan.

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1 user

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FileLink Provider for Dropbox

Uploads your large attachments to your Dropbox instead of sending them by email. This uses Thunderbird's FileLink feature.

Rated 4 out of 5 stars (22)
51,165 users

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Hide Email Folders

Hide Email Folders from the Folder pane (Left pane).
Note: This addon only works for Unified pane/folder mode.
Note #2: Please note that this addon only hide email folders and NOT local folders!
Special thanks to John Bieling, C-E and Alex Cabal.

Rated 4 out of 5 stars (13)
368 users

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Select Prev on Delete

Selection of the previous message (instead of next message - default behavior) when deleting (only for Thunderbird 115 or above).

If running Thunderbird between 78 and 114, use version 1.0.0

Rated 4 out of 5 stars (4)
21 users

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