Language Support

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Spanish Dictionary for Spelling

Select a text in Spanish appearing on any web page and get a spelling check for it immediately!

Seleccione un texto en español que aparece en cualquier página web y obtener una revisión ortográfica de inmediato!

Not yet rated
2,600 users

Simple Locale Switcher

An easier management of the user interface language

Rated 5 out of 5 stars (4)
9,513 users

Quick Locale Switcher

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

Rated 3 out of 5 stars (81)
274,512 users

AutoUp

Transform the first letter of a sentence in uppercase

Rated 3 out of 5 stars (6)
1,372 users

Todoist for Thunderbird

Todoist is a leading online task manager and we manage millions of todos! Todoist for Thunderbird makes it super easy to manage your todos and email directly from Thunderbird.

Watch a short video:
https://www.youtube.com/watch?v=VixEQJb5Qc0

Rated 4 out of 5 stars (11)
6,788 users

Finnish spellchecker

Finnish Spellchecker

Rated 4 out of 5 stars (96)
8,330 users

Automatic Dictionary No Restart

Extension that remembers the language of the spellchecker used when composing and switches to it every time you write to that person.

Rated 5 out of 5 stars (17)
2,793 users

AVIM

An input method editor (IME) for Vietnamese. Type Vietnamese diacritics directly into any Web page, Web app, or dialog box.
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Bộ gõ tiếng Việt cho phép đặt dấu trực tiếp vào bất kỳ trang Web, ứng dụng Web, và hộp thoại.

Rated 5 out of 5 stars (30)
3,252 users

Dictionary Switcher

Toggles dictionaries automatically or manually and displays the currently selected one

Rated 4 out of 5 stars (164)
27,659 users

WordReference Translator

Open a tab with WordReference's translation for the selected word. Through a floating link, or by pressing "D" key.

Rated 3 out of 5 stars (30)
8,419 users

Right Encoding

Adds the Character Encoding menu to the context menu

Rated 5 out of 5 stars (16)
4,706 users

SelectionSK

Pops up user menu with useful tools (copy, highlight, translation, search, etc.) when text is selected with the mouse

Rated 5 out of 5 stars (61)
1,589 users

Grammar Checker

Checks grammar using LanguageTool facilities.

Rated 4 out of 5 stars (4)
2,690 users

Dictionary Switcher for Thunderbird

Toggles spelling dictionaries automatically or manually and displays the currently selected one in the status bar.
Now merged with Dictionary Switcher v1.3 for Firefox/SeaMonkey

Rated 4 out of 5 stars (26)
12,175 users

Zombie Keys (Multilanguage Keyboard)

Enter accents, diacritics, diaeresis, umlauts, ligatures etc. with keyboards of various countries (us,uk,ie,fr,it,ru,de,sv) - via easy to remember shortcuts or menu. Also supports all textboxes of the application (such as search, filters).

Rated 5 out of 5 stars (22)
1,530 users

Transliterator No Restart

As-you-type phonetic conversion of text from one alphabet to another, as well as transliteration/detransliteration of selected text anywhere within documents. Supports multiple languages and custom transliteration schemes.

Rated 5 out of 5 stars (75)
8,131 users

Quick Translator

The most lightweight and easiest translator. Translate between more than 80 languages with one click or a hot key. Translate from one word to a whole page.

Rated 5 out of 5 stars (453)
271,288 users

www.Translate

Multi-Translator from Google, Bing and Pragma.
Translation tool for your Firefox and Thunderbird with a simple and friendly interface.

Rated 4 out of 5 stars (23)
15,959 users

新同文堂 (New Tong Wen Tang)

NewTongWenTang is a tool to switch display Chinese content between traditional and simplified glyphs (中文繁簡體互轉工具)

Rated 4 out of 5 stars (94)
44,448 users

Rikaichan Japanese-German Dictionary File

A dictionary file for Rikaichan.

Rated 5 out of 5 stars (1)
3,855 users