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Text-to-Speech (Google™ & HTML5) Compatible with Firefox 57+

Google™ Text-to-Speech is a text to speech engine with natural sounding voices.

Rated 3 out of 5 stars (53)
5,535 users

WordReference Translator Requires Restart

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

Rated 4 out of 5 stars (34)
5,369 users

Finnish spellchecker Requires Restart

Finnish open source Voikko-spellchecker for Mozilla and needed libraries.

Rated 4 out of 5 stars (101)
5,101 users

Fast Translation Requires Restart

Easy translation tool using Google Translate. Select text and right click to translate. Press CTRL+SHIFT+L to open translation window.

Rated 4 out of 5 stars (102)
4,995 users

Transliterator

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 (74)
4,954 users

Euskalbar Requires Restart

Basque dictionaries and other tools (corpora, spellcheckers, search engines...). Euskalbar is a Firefox toolbar that helps translating words from Basque to other languages and from other languages to Basque.

Rated 5 out of 5 stars (29)
4,818 users

YandexTranslate:anything-Russian & Russian-English

Translate selected word or phrase over translate.yandex.ru 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 (28)
4,492 users

New Tong Wen Tang Compatible with Firefox 57+

Traditional and Simplified Chinese Converter

Rated 5 out of 5 stars (20)
3,894 users

One-Click Translate Page

A basic Mozilla Firefox Add-On. Press the Translate button and the current page will open in Google Translate in your chosen language.

Rated 3 out of 5 stars (5)
3,787 users

Youdao Translation Requires Restart

You can select text and right-click or press ALT+Z to translate

hear the pronunciation of the selected sentence

use Youdao app review words by phone

use it as a Translation Software

翻译插件,并有语句的发音。单词可加入有道单词本,手机安装有道的APP可以随时随地与电脑上的单词本进行同步复习单词

Rated 4 out of 5 stars (30)
3,689 users

Zotero bibliography Locale Switcher Requires Restart

This add-ons add a sub menu in Zotero to change the bibliography export locale.

Rated 5 out of 5 stars (4)
3,638 users

yeekit网页翻译 Compatible with Firefox 57+

译库网页翻译是一款由中译语通科技(北京)有限公司开发的针对网页进行翻译的浏览器工具。
一键秒翻,轻松浏览外文网站。

Rated 4 out of 5 stars (11)
3,408 users

Rikaichan Japanese-German Dictionary File Requires Restart

A dictionary file for Rikaichan.

Rated 5 out of 5 stars (1)
3,360 users

IME Area Requires Restart

"IME Area" changes background color of textarea when IME is opened.

Rated 5 out of 5 stars (2)
3,313 users

Right Encoding Requires Restart

Adds the Character Encoding menu to the context menu

Rated 5 out of 5 stars (19)
3,267 users

Charset Switcher Requires Restart

Supports to customize the Default Character Encoding for each sites.

Rated 4 out of 5 stars (25)
3,243 users

Search term highlighter Requires Restart

Highlights your search terms in Web pages.

Rated 5 out of 5 stars (81)
3,200 users

BingDict

Translate selected text on current web pages.
No need to leave current web pages.
Translate results come from Bing Translate.
Thanks for your support!

Rated 4 out of 5 stars (28)
3,114 users

Right-Click Translate

Translate selected text to preferred target language.

Rated 5 out of 5 stars (8)
3,079 users

Perapera Japanese Popup Dictionary Requires Restart

Put your mouse over any Japanese words on a webpage and it gives you the pronunciation and definition. English, German, French, and Russian dictionaries; Save and export words for studying later!

Rated 5 out of 5 stars (45)
3,069 users