Language Support

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Character Palette

Firefox toolbar for selecting strange characters that are not on my keyboard.

Rated 3 out of 5 stars (12)
633 users

Character Identifier

This extension adds a context menu item for selected text that provides more information (from the Unicode database) about the characters...

Rated 4 out of 5 stars (10)
461 users

Preslovar

Ћирилично/латинично пресловљавање, виртуална ћирилична тастатура - Serbian Cyrillic/Latin transliteration and Virtual Cyrillic keyboard

Rated 5 out of 5 stars (11)
389 users

Brazil Portuguese Dictionary for Spelling

Selecione um texto em Português aparecer em qualquer página da web e obter uma verificação ortográfica para ele imediatamente!

Rated 1 out of 5 stars (1)
221 users

Equations

Insert inline LaTeX equations into e-mail messages.

Rated 5 out of 5 stars (21)
216 users

Rikaichan Japanese-Dutch Dictionary File

This is a dictionary file add-on for the Rikaichan extension.

Not yet rated
168 users

Perapera Japanese-German Dictionary File

This is additional dictionary file for use with the Perapera Japanese Pop-up Dictionary add-on.

Not yet rated
141 users

Hindi Pop up

After installing this extension, just hover the mouse on top of an English word and a pop-up will appear with suggestions of possible hindi equivalents.

Rated 5 out of 5 stars (3)
130 users

Perapera Japanese-French Dictionary File

This is additional dictionary file for use with the Perapera Japanese Pop-up Dictionary add-on.

Rated 1 out of 5 stars (1)
114 users

Markov Dictionary Switcher

Based on Dictionary Switcher but more than a thousand times faster and you can choose dictionaries that you want to use. Detects the language of the message that you are composing and changes the spelling dictionary.

Rated 4 out of 5 stars (7)
75 users

Chat RTL

Fixing the Chat so it would support RTL languages (i.e. Hebrew, Arabic) better.

Not yet rated
68 users

Indian Language Transliterator

Indian Language Transliterator (developed at IIIT Hyderabad, India) is a Mozilla Thunderbird Add-on, developed to enable Thunderbird users to compose and send messages in 10 Regional Indian Languages, using their regular QWERTY keyboard!!!

Rated 4 out of 5 stars (1)
56 users

The Book of Mozilla, 15:1 in Japanese No Restart

The Book of Mozilla, 15:1 in Japanese

Not yet rated
50 users

IO.Translator

即时在线汉英互译 - Instant Online Translator (Chinese-English)

Rated 5 out of 5 stars (1)
49 users

CodeHighlight

highlight code in email.

Rated 3 out of 5 stars (1)
37 users

Perapera Japanese-Russian Dictionary File

This is additional dictionary file for use with the Perapera Japanese Pop-up Dictionary add-on.

Not yet rated
37 users

Submit Word (Romanian)

An extention that allows users to submit words for inclusion in the Romanian dictionary.

Rated 5 out of 5 stars (3)
36 users

Bosnian spell checker

This is a comprehensive spell checker that contains more than 300 000 words of the Bosnian language.

Rated 5 out of 5 stars (1)
34 users

Asystent Nauki Angielskiego

Pomoc w nauce angielskiego i rozumienia tekstów przez tłumaczenie pojedynczych, rzadkich słów.

Not yet rated
32 users

Persian transliteration No Restart

Helps transliterating Persian texts.

Not yet rated
29 users