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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).

Rated 5 out of 5 stars (22)
1,296 users
Updated December 5, 2016

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.

Rated 5 out of 5 stars (8)
3,890 users
Updated December 2, 2016

TexTra Thunderbird Requires Restart

Thunderbirdのメールのテキストを翻訳、辞書引きを行います。

Not yet rated
58 users
Updated December 1, 2016

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.

Rated 5 out of 5 stars (1)
577 users
Updated October 18, 2016

S3.Google Translator Requires Restart

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!

Rated 5 out of 5 stars (394)
382,551 users
Updated October 18, 2016

English - English Dictionary Requires Restart

Important!!! If you can't see the "Abc" icon , please click View --> Toolbars --> Bookmarks Toolbar.

This is an English dictionary for looking up words in English.

Select a word using your mouse and find its meaning in English!

Rated 2 out of 5 stars (9)
5,504 users
Updated October 6, 2016

German Spell Check Requires Restart

Important!!! If you can't see the German flag, please click: View --> Toolbars --> Bookmarks Toolbar. This is a German spelling checker for finding misspellings.

Rated 3 out of 5 stars (7)
7,427 users
Updated October 6, 2016

French Dictionary for Spelling Requires Restart

Supports also the Nighty browser! 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!

Rated 4 out of 5 stars (9)
5,983 users
Updated October 4, 2016

AVIM Requires Restart

Vietnamese-language input method editor (IME). Type diacritics directly into any Web page, Web app, or dialog box. Convenient, comprehensive, secure.
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Bộ gõ tiếng Việt cho phép đặt dấu trực tiếp vào bất kỳ trang Web, ứng dụng Web, hộp thoại.

Rated 5 out of 5 stars (34)
2,830 users
Updated August 1, 2016

Simple Locale Switcher Requires Restart

An easier management of the user interface language

Rated 5 out of 5 stars (8)
23,517 users
Updated July 1, 2016

WordReference Translator Requires Restart

Open a tab with WordReference's translation for the selected word. Through a floating link, or by pressing "D" key.

Rated 4 out of 5 stars (34)
6,973 users
Updated June 27, 2016

Portuguese Dictionary for Spelling Requires Restart

Important!!! If you can't see the Brazilian flag, please click View --> Toolbars --> Bookmarks Toolbar.
Select a text in Portuguese on any web page and get a spell check for it immediately!

Rated 4 out of 5 stars (6)
578 users
Updated June 16, 2016

Spanish Dictionary for Spelling Requires Restart

Important!!! If you can't see the Mexican flag, please click View --> Toolbars --> Bookmarks Toolbar.

Select a text in Spanish appearing on any web page and get a spelling check for it immediately!

Rated 5 out of 5 stars (3)
2,651 users
Updated June 16, 2016

XUL/Migemo Requires Restart

This provides dictionary-assisted search (Migemo search) and regular expression powered search for "find in this page" and other features.

Rated 4 out of 5 stars (50)
1,117 users
Updated June 15, 2016

Italian Dictionary for Spelling Requires Restart

Important!!! If you can't see the Italian flag, please click View --> Toolbars --> Bookmarks Toolbar.

Select a text in Italian appearing on any web page and get a spell check for it immediately!

Not yet rated
359 users
Updated April 6, 2016

Hindi Pop up Requires Restart

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)
115 users
Updated February 14, 2016

Mukparasi Requires Restart

A Korean popup dictionary based on Rikaichan
Requires the additional dictionary addon.

Rated 1 out of 5 stars (1)
21 users
Updated January 24, 2016

Rikaichan Japanese-Hungarian Dictionary File Requires Restart

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

Not yet rated
55 users
Updated January 1, 2016

Rikaichan Japanese-Dutch Dictionary File Requires Restart

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

Not yet rated
179 users
Updated January 1, 2016

Rikaichan Japanese-Russian Dictionary File Requires Restart

A dictionary file for Rikaichan.

Not yet rated
874 users
Updated January 1, 2016