Welcome to Thunderbird Add-ons.
Add extra features and styles to make Thunderbird your own.Close
Transform the first letter of a sentence in uppercase
Toggles dictionaries automatically or manually and displays the currently selected one
Open a tab with WordReference's translation for the selected word. Through a floating link, or by pressing "D" key.
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!
Toggles spelling dictionaries automatically or manually and displays the currently selected one in the status bar.
Now merged with Dictionary Switcher v1.3 for Firefox/SeaMonkey
An easier management of the user interface language
Finnish open source Voikko-spellchecker for Mozilla and needed libraries.
Fire Shabelet is a Japanese Voice Reader Software for Mozilla powered by VDS.
Todoist is a leading online task manager and we manage millions of todos! Todoist for Thunderbird makes it super easy to manage your todos and email directly from Thunderbird.
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A dictionary file for Rikaichan.
Checks grammar using LanguageTool facilities.
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!
Automatic Dictionary No Restart
Extension that remembers the language of the spellchecker used when composing and switches to it every time you write to that person.
Type in accented letters, international characters or symbols into Firefox or Thunderbird, either simply by using a context menu (there being support for many languages), or quickly by keyboard macro (you can even define your own).
This is an English dictionary for looking up words in English.
Select a word using your mouse and find its meaning in English!
Multi-Translator from Google, Bing and Pragma.
Translation tool for your Firefox and Thunderbird with a simple and friendly interface.
Looks up a selected word in OS X's Dictionary.app
This is a dictionary file add-on for the Rikaichan extension.
Word translation in tooltip with English⟷Croatian dictionary already incorporated.