abcTajpu Requires Restart
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. From Firefox 57 onward, please install abcTajpu2.
Asystent Nauki Angielskiego Requires Restart
Pomoc w nauce angielskiego i rozumienia tekstów przez tłumaczenie pojedynczych, rzadkich słów.
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.
AutoUp Requires Restart
Transform the first letter of a sentence in uppercase
AVIM Requires Restart
Vietnamese-language input method editor (IME). Type diacritics directly into any Web page, Web app, or dialog box. Convenient, comprehensive, secure.
Bộ gõ tiếng Việt cho phép đặt dấu trực tiếp vào bất kỳ trang Web, ứng dụng Web, hộp thoại.
Babylon Dictionary Word Search Requires Restart
Find the definition for a selected word in a web page or an email.
Right click over the selected word, choose the option "Search in Babylon" and that's it! You will have a new window with the definition of the selected word.
Bosnian spell checker Requires Restart
This is a comprehensive spell checker that contains more than 300 000 words of the Bosnian language.
CantoFish Requires Restart
CantoFish is a popup Cantonese-English dictionary for Firefox. It contains over 200,000 entries and works with both traditional and simplified Chinese characters. The Yale and Jyutping romanization systems are supported, as well as Mandarin pinyin.
Character Palette Requires Restart
Firefox toolbar for selecting strange characters that are not on my keyboard.
Chat RTL Requires Restart
Fixing the Chat so it would support RTL languages (i.e. Hebrew, Arabic) better.
CodeHighlight Requires Restart
highlight code in email.
ComposeRTF Requires Restart
Compose messages Right-to-Left or Left-to-Right. Unlike other addons which change the direction of typing of the whole message, this addon allows you to control the direction of an individual paragraph.
dictCheck Requires Restart
dictCheck - Double click on any english word in a page to get the polish meaning. Uses fast online dictionary.
Simple and easy! Enjoy!
Sets the spell check dictionary based on the first recipient
Dictionary Switcher Requires Restart
Toggles dictionaries automatically or manually and displays the currently selected one
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
EHTip Requires Restart
Word translation in tooltip with English⟷Croatian dictionary already incorporated.
Equations Requires Restart
Insert inline LaTeX equations into e-mail messages.
Finnish spellchecker Requires Restart
Finnish open source Voikko-spellchecker for Mozilla and needed libraries.
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.