Language Support


Google Translator for Firefox Featured

With this addon you can translate any text to your own language with one click or hot-key. You can either translate the selected text, this way the translated text will overwrite the original selected text, or you can translate the full page too.

Rated 4 out of 5 stars (313)
11,676 weekly downloads

S3.Google Translator Featured

S3.Google Translator adds the power of Google Translate’s automatic translations to your browser!
It supports translation of selected text, entered phrase or whole webpage between any of 80+ languages.

New Feature: Language learning!

Rated 5 out of 5 stars (257)
6,174 weekly downloads

ImTranslator - Google Translator, Dictionary, TTS

ImTranslator provides translation powered by Google Translate, Microsoft, Babylon for 70+ languages. It includes Translator, Dictionary, Text-to-Speech, Back Translation.
Video Tutorial:

Rated 4 out of 5 stars (431)
2,455 weekly downloads

Google™ Translator Lite No Restart Featured

Google™ Translator Lite

Rated 4 out of 5 stars (20)
726 weekly downloads

Easy Google Translate No Restart

Translate selected text on current web pages. Support translate over 40 languages. Translate results come from Google Translate.

Rated 3 out of 5 stars (39)
706 weekly downloads

To Google Translate No Restart

Highlight text on a web page, right click and select To Google Translate for translate or play the previous text. EN-to-ES.

Marque un texto en una página web, de clic derecho y seleccione To Google Translate para traducir o reproducirlo. EN-a-ES.

Rated 3 out of 5 stars (22)
672 weekly downloads

Wiktionary and Google Translate

(former Google Dictionary and Google Translate)

In-line dictionary for any word you point to or double-click; whole page translation of any web page in another language.

Rated 4 out of 5 stars (177)
537 weekly downloads

gtranslate No Restart Featured

With gtranslate you can translate any text in a web page just by selecting and right-clicking over it. The extension uses the Google translation services to translate the text.

Rated 4 out of 5 stars (486)
440 weekly downloads

Text to Voice Featured TTS gives Firefox the power of speech. Select text, click the button on the bottom right of Firefox window and this add-on speaks the selected text for you. Isn't it brilliant? Audio is downloadable.

Rated 4 out of 5 stars (172)
331 weekly downloads

translator No Restart

translator is web translation extension that allows you to translate any web page or text into nearly any language at the click of a button.

Rated 4 out of 5 stars (98)
306 weekly downloads

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 (85)
255 weekly downloads

Grammarly Spell Checker & Grammar Checker No Restart

Spell check and grammar check as you type online. Boost your credibility everywhere you write!

Rated 4 out of 5 stars (7)
254 weekly downloads

Rikaichan Japanese-English Dictionary File

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

Rated 4 out of 5 stars (6)
230 weekly downloads


Japanese to English/German/French/Russian dictionary. Just hover the mouse on top of a word, and a popup appears. Automatically de-inflects verbs and adjectives. Detailed kanji view...

Rated 5 out of 5 stars (89)
216 weekly downloads

Google Selection Translate - For AltKey No Restart

Selecting text and holding alt key, translated results will show up on current web pages. No need to leave current web pages. Translate results come from Google Translate.

Rated 5 out of 5 stars (5)
206 weekly downloads

LinguaLeo No Restart

LinguaLeo Translator is the most useful way to get translations of English words on any page online. Just click twice and you will get its translation. Our extension also allows you to translate any phrases.

Rated 3 out of 5 stars (87)
196 weekly downloads

Locale Switcher

Displays a menu item for switching the application locale.

Rated 4 out of 5 stars (25)
174 weekly downloads


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 (29)
162 weekly downloads

YandexTranslate:anything-Russian & Russian-English No Restart

Translate selected word or phrase over from any lang to Russian (or from Russian to English) - result in context menu (right click) and in popup. Minimum and fast. Not affect DOM. Unofficial extension - works by using API.

Rated 4 out of 5 stars (27)
149 weekly downloads

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 (97)
143 weekly downloads