Add-ons
Language Support
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Automatic Dictionary
Remembers the language you use with a person or group of people, and switches the spellchecker language automatically for you next time. You do not have to do it manually any more. It remembers and switches it for you.
Grammalecte [fr] (for Thunderbird)
Requires Restart
French grammar checker. Included: conjugation tool, text formatter and spelling dictionaries.
Grammar Checker
Simple Locale Switcher
Requires Restart
An easier management of the user interface language
Quick Locale Switcher
Requires Restart
Allows you to quickly switch to a different language (User Interface, Spell Checker Dictionary and Website content) in your Mozilla application.
Dictionary Switcher
Requires Restart
Toggles dictionaries automatically or manually and displays the currently selected one
Zombie Keys (Multilanguage Keyboard)
Requires Restart
Enter accents, diacritics, diaeresis, umlauts, ligatures etc. with keyboards of various countries (us,uk,ie,fr,it,ru,de,sv) - via easy to remember shortcuts or menu. Also supports all textboxes of the application (such as search, filters).
Dictionary Switcher for Thunderbird
Requires Restart
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
Quick Locale Switcher 2
Requires Restart
Allows you to quickly switch to a different language (User Interface, Spell Checker Dictionary and Website content) in your Mozilla application.
AutoUp
www.Translate
Requires Restart
Multi-Translator from Google, Bing and Pragma.
Translation tool for your Firefox and Thunderbird with a simple and friendly interface.
Right Encoding
No Small Text
Set a minimum text size for all web content. Use the toolbar button to switch it on and off. NEW: Three preset sizes. NEW: Use mouse scroll on the toolbar button.
Rikaichan Japanese-English Dictionary File
Requires Restart
This is a dictionary file add-on for the Rikaichan extension.
Finnish spellchecker
Requires Restart
Finnish open source Voikko-spellchecker for Mozilla and needed libraries.
Dictionary Search
Requires Restart
A dictionary search tool, currently restricted to using dict.leo.org. This is just a personal learning little project, not endorsed by Leo GmbH. Sources at https://gitlab.com/apiraino/dict_search
South African English spell checker
Requires Restart
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!"
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.
EasyRight2Left
Requires Restart
Change direction from Left to Right and Right to Left for Persian, Arabic, Hebrew etc. This Thunderbird extension is based on ComposeRTF available in https://addons.thunderbird.net/en-US/thunderbird/addon/composertf/
To create your own collections, you must have a Mozilla Add-ons account.
