SpanishTrans Requires Restart
This is a very simple, complete, fast and clean dictionary, which allows you to highlight an English word on the page that you're visiting and get immediately the Spanish translation...
Yamli Smart Arabic Keyboard Requires Restart
Write Arabic anywhere on the web using Yamli's Smart Arabic Keyboard. Also use Yamli's powerful Arabic search directly from the browser.
FoxVox Requires Restart
FoxVox will speak any text you highlight in a web page. FoxVox can also create audiobooks in mp3, ogg, and wav formats. You can now easily turn your blogs and articles into podcasts.
Locale Switcher Requires Restart
Displays a menu item for switching the application locale.
Portail lexical du CNRTL Requires Restart
Une barre d'outil pour le portail lexical du CNRTL
French grammar checker.
Included: conjugation tool, lexicographer, text formatter and spelling dictionaries.
Translation, text-to-speech, transliteration on pages and in the pop-up for 100+ languages.
A basic Mozilla Firefox Add-On. Press the Translate button and the current page will open in Google Translate in your chosen language.
Grammarly’s free spelling and grammar checker ensures that everything you type is easy to read, effective, and mistake-free. As you type, Grammarly underlines spelling mistakes and grammatical errors and helps you fix them on the fly.
An add-on to convert your text to speech
French Dictionary for Spelling Requires Restart
Supports also the Nighty browser! This is a French Spelling dictionary, for finding spelling mistakes.
Select a text in French appearing on any web page and get a spelling check for it immediately!
Greek Translator Requires Restart
Translates English to Greek and vice versa.
Dictionary Switcher Requires Restart
Toggles dictionaries automatically or manually and displays the currently selected one
Zotero bibliography Locale Switcher Requires Restart
This add-ons add a sub menu in Zotero to change the bibliography export locale.
Text to Voice Requires Restart
https://en.wikipedia.org/wiki/Text_to_Voice_(Firefox). 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. Audio is downloadable.
WordReference Translator Requires Restart
Open a tab with WordReference's translation for the selected word. Through a floating link, or by pressing "D" key.
Finnish spellchecker Requires Restart
Finnish open source Voikko-spellchecker for Mozilla and needed libraries.
Rikaichan Japanese-French Dictionary File Requires Restart
A dictionary file for Rikaichan.
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.
Life Science Dictionary Tool Requires Restart
Life Science Dictionary Tool is a mouseover dictionary that translates life science terms with vast numbers of English and Japanese terms available with information from life science dictionary project (http://lsd.pharm.kyoto-u.ac.jp/ja/index.html).