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Google Translator for Firefox

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 (292)
772,154 users

ImTranslator - Google Translator, Dictionary, TTS

MORE THAN 21 MILLION DOWNLOADS
ImTranslator provides translation powered by Google Translate, Microsoft, Babylon for 70+ languages. It includes Translator, Dictionary, Text-to-Speech, Back Translation.
Video Tutorial: http://youtu.be/qyLyFkQuMGU

Rated 4 out of 5 stars (430)
394,258 users

Quick Translator Featured

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 (459)
273,431 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)
268,122 users

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 (182)
233,442 users

gTranslate

With gTranslate you can translate any text in a webpage 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 (451)
106,396 users

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 (167)
64,050 users

rikaichan

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 (87)
54,097 users

Google™ Translator Lite No Restart Featured

Google™ Translator Lite

Rated 4 out of 5 stars (9)
49,078 users

Seznam lištička

Seznam Lištička je vylepšení prohlížeče, které vám zpříjemní práci s internetem. Rychle vám přeloží slova, kterým nerozumíte a zjednoduší vám přístup do emailové schránky.

Rated 3 out of 5 stars (11)
47,823 users

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 (18)
45,930 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)
44,195 users

Rikaichan Japanese-English Dictionary File

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

Rated 5 out of 5 stars (4)
43,939 users

Easy Google Translate No Restart

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

Rated 4 out of 5 stars (27)
42,648 users

Locale Switcher

Displays a menu item for switching the application locale.

Rated 4 out of 5 stars (25)
37,140 users

Text to Voice Featured

http://en.wikipedia.org/wiki/Text-to-voice. 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 5 out of 5 stars (160)
29,609 users

Dictionary Switcher

Toggles dictionaries automatically or manually and displays the currently selected one

Rated 4 out of 5 stars (165)
28,441 users

translator

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 (93)
26,418 users

QuickWiki

Quick lookup in Wiktionary and Wikipedia, without the need to open a new tab.
Just right-click a word while shift / ctrl / alt is pressed.

Rated 4 out of 5 stars (135)
24,613 users

Rikaichan Japanese Names Dictionary File

A dictionary file for Rikaichan.

Rated 5 out of 5 stars (3)
19,248 users