LEO Dictionaries Requires Restart
This is the official add-on for easier access to LEOs Online Dictionaries. Select any word or phrase, right-click on the selection and translate from/to English, French, Spanish, Italian, Chinese, Russian, Portuguese and Polish to/from German.
"Dictionary (Google™ Translate) Anywhere" extension provides access to a floating multilingual Google Translate panel on any webpage.
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.
French grammar checker.
Included: conjugation tool, lexicographer, text formatter and spelling dictionaries.
With this extension you can check text with the free style and grammar checker LanguageTool. It finds many errors that a simple spell checker cannot detect, like mixing up there/their, a/an, or repeating a word.
The add-on uses dict.cc to translate words and phrases in any website, epub or pdf. In-page translation. No need to select the word, just click on it!
Provide easy way to install Additional Language Packs.
Language Manager Requires Restart
Language Manager, Designed to manage language packs for Firefox web browsers this easy to use utility make it easy to manage installed language packs and always have the latest language pack installed.
German Spell Check Requires Restart
This is a spelling dictionary, where you can select a text in German, click on the icon (German flag) and get your text checked against spelling mistakes.
Translate entire web page or selected text using google translate
There are many translators on Firefox. There are two features they're not supported:
This addon can translate all pages you can open in firefox
Perapera Chinese Popup Dictionary Requires Restart
Put your mouse over any Chinese words on a webpage and it gives you the pronunciation and definition. English, German, & French dictionaries; Pinyin and Zhuyin supported; Simplified or Traditional characters. Save and export words for studying later!
A simple words and page translation tool by using Google Translate.
Leo Search Requires Restart
Searches for marked words in the database at dict.leo.org and opens the result in a new background tab. It supports all languages provided by leo.org. Press "Ctrl" key to open the search result in a new foreground tab.
Online Translator Toolbar Requires Restart
Free Online Translator Toolbar help you to translate whole web page, selected text on web page or text from Clipboard using one of free online translate services. Also you can translate single words using one of free online dictionaries
www.Translate Requires Restart
Multi-Translator from Google, Bing and Pragma.
Translation tool for your Firefox and Thunderbird with a simple and friendly interface.
SelBlocks (for Selenium IDE) Requires Restart
DictionarySearch (Official Version) Requires Restart
Looks up a user selected word in an online...
gTranslator Requires Restart
Google translate gadget for firefox. This extension translates entire webpages into a language of your choice with one click. Idea comes from Google Translation Bar for Chrome.
Translate words and expressions in context and improve your language skills. Spanish, French, Russian, Italian, etc.
QuickWiki Requires Restart
Quick lookup in Wiktionary and Wikipedia in the current tab
40 languages of Wikipedia and English Wiktionary(at least for now) are supported.
Double-click a word (or select the word/set of words) and then use the right-click menu to look it up.