Language Support



This extension allows you to easily insert accented characters as you type in firefox or thunderbird. It is similar to abctajpu (no longer supported). With the default settings, simply press "e" followed by "\" to insert "é" "a\" to insert "à" etc...

Not yet rated
5 users
Added May 10, 2022

Grammar, Proofreading & Spell Checker

Check the grammar and spelling directly inside Thunderbird using Wordeep technology

Rated 5 out of 5 stars (1)
163 users
Added Jan. 24, 2022


Adds browser action icon to toolbar to open Skype. See

Not yet rated
47 users
Added Aug. 21, 2021

✨ 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.

Not yet rated
858 users
Added Aug. 10, 2021

Unicodify – Text transformer

Easily and quickly autocorrect common symbols as ¼, transform text to “Unicode fonts” and change the casing.

Rated 5 out of 5 stars (1)
142 users
Added Aug. 10, 2021

Grammar and Spell Checker — LanguageTool

Check your emails for spelling and grammar issues

Rated 4 out of 5 stars (18)
19,916 users
Added July 26, 2021

Charset Menu

Restores the charset menu removed in Thunderbird 91 and fixes an issue in Thunderbird 78.

Rated 5 out of 5 stars (6)
3,318 users
Added June 3, 2021


Eine Thunderbird-Erweiterung, welches Binnen-Is und Ähnliches von Webseiten entfernt. Es basiert auf der bekannten Firefox Erweiterung Binnen-I be gone.

Not yet rated
72 users
Added May 23, 2021

Read Aloud: A Text to Speech Voice Reader

Read aloud the selected email messages using text to speech (TTS). Read Aloud is intended for users who prefer to listen to content instead of reading, and those with dyslexia or other learning disabilities.

Rated 5 out of 5 stars (1)
358 users
Added March 7, 2021

Text Insert/Text Blocks

Insert styled text blocks/templates (text, images, tables etc.) in an easy way in email composer.

E.g.: type br<ctrl-d>, it converts to best regards.

Make a list of shortcut-replacements in the addon settings. Style the text, add images etc.

Rated 4 out of 5 stars (5)
252 users
Added Feb. 26, 2021

Web Translate

The best Translator for Thunderbird!

Supported translators:
Google Translate
Microsoft Translator
Яндекс Переводчик
Google 翻译

Rated 4 out of 5 stars (18)
21,121 users
Added Oct. 11, 2020

ThunderbirdCR (Dictionary) Requires Restart

Context Reverso for Thunderbird.
A translator/dictionary available to English, Spanish, French, German, Italian, Portuguese Dutch, Polish, Romanian, Arabic, Chinese, Japanese, Hebrew, Russian, Turkish.

Hotkey: Search selected texts (Shift+F1)

Not yet rated
122 users
Added Aug. 23, 2020

TransliteRussian for Thunderbird

Печатаем по русски на разных клавиатурах.
E-Mails auf Russisch auf verschiedenen Tastaturen in Thunderbird.
Typing Russian on English, German and other keyboards without thinking about the layout.

Rated 4 out of 5 stars (1)
43 users
Added April 25, 2020

Dictionary Search Requires Restart

A dictionary search tool, currently restricted to using This is just a personal learning little project, not endorsed by Leo GmbH. Sources at

Not yet rated
7 users
Added Sept. 30, 2018

EasyRight2Left Requires Restart

Change direction from Left to Right and Right to Left for Persian, Arabic, Hebrew etc. This Thunderbird extension is based on ComposeRTF available in

Rated 5 out of 5 stars (2)
6 users
Added Aug. 21, 2018

Grammalecte [fr] (for Thunderbird)

French grammar checker. Included: conjugation tool, text formatter and spelling dictionaries.

Rated 5 out of 5 stars (14)
5,972 users
Added April 26, 2017

Quick Locale Switcher 2 Requires Restart

Allows you to quickly switch to a different language (User Interface, Spell Checker Dictionary and Website content) in your Mozilla application.

Rated 5 out of 5 stars (2)
13 users
Added Oct. 17, 2016



Rated 3 out of 5 stars (1)
931 users
Added June 23, 2016

Rikaichan Japanese-Hungarian Dictionary File Requires Restart

This is a dictionary file add-on for the Rikaichan extension.

Not yet rated
0 users
Added Jan. 1, 2016

Dictionary for recipient

Sets the spell check dictionary based on the first recipient

Rated 5 out of 5 stars (2)
5,655 users
Added Aug. 25, 2015