Best Language Support Mozilla Addons Alternatives

ChatZilla zh-CN language pack for ChatZilla 0.9.92

THE ONLY SUPPORTED LANGUAGE IS HUNGARIAN!
This add-on is designed to remove ads, replace smileys, etc. on a Hungarian community site, called myvip.com.
Only Hungarian language is supported.

Removes offensive language throughout the web, making the WWW a better place.

Extension for reading and learning Arabic. Requires the Alpheios Basic Libraries extension, available at https://addons.mozilla.org/en-US/firefox/addon/15085 . This is an Alpha release.

Extension for reading and learning Latin. Requires the Alpheios Basic Libraries extension, available at https://addons.mozilla.org/en-US/firefox/addon/15085 .

High quality TTS screen reader with automatic language recognition. Voice speed control. Integrated interface (compact & extended). Supports English, Spanish, German, Italian, French, Russian. Select text to speak it. (TTS: Text-To-Speech)

Extend Firefox's search engines for searching web sites and file formats.

Firefox modifications. Originally made by mitezuss, updated to add some fixes (provided by mitezuss), and added new extra tab options. Read full description for Firefox 14!

Extension adding support for U2F standard to your Firefox

WSTT is a utility that transforms page characters from one writing system to another.
Version 0.9.1 supports transformations from the latin alphabet into Cyrillic, Greek, Katakana and Hiragana.

Translate webpages into your own language at Google

Bring back tabs on bottom feature !

Translate web pages and selected passages in Chinese, English, Japanese and Korean, using the translation service provided by excite.co.jp. ...

telnet client extension specifically designed for BBS browsing.
It support mouse browsing and FireGestures script.

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

pkrss is one rss tools, it embed http://www.pk17s.cn.
contact with google rss feed,join in multi lanauage support,if default panel has no feed,your can search some feed by keyword in topbar.

Allows you to quickly switch to a different language (User Interface, Spell Checker Dictionary and Website content) in your Mozilla application.