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
Fire Shabelet is a Japanese Voice Reader Software for Mozilla powered by VDS.
Finnish open source Voikko-spellchecker for Mozilla and needed libraries.
An easier management of the user interface language
Open a tab with WordReference's translation for the selected word. Through a floating link, or by pressing "D" key.
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
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!
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.
Watch a short video:
Checks grammar using LanguageTool facilities.
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.
A dictionary file for Rikaichan.
Allows you to quickly switch to a different language (User Interface, Spell Checker Dictionary and Website content) in your Mozilla application.
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!
Select a text in Spanish appearing on any web page and get a spelling check for it immediately!
This is an English dictionary for looking up words in English.
Select a word using your mouse and find its meaning in English!
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).
The South African English spell checker allows you to use place names, borrowed words, and other expressions that are unique to South Africa.
"No more eina, just a lekker spell checker!"
Word translation in tooltip with English⟷Croatian dictionary already incorporated.