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Wikipedia (ru) (rus) (russian)

Same as "Wikipedia" search engine but searching "ru.wikipedia.org" instead of "en.wikipedia.org".
Поиск в русской Википедии.

Rated 5 out of 5 stars (3)
32 weekly downloads

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Yahoo! Clever Search

Yahoo! Answers Search Add-On for Firefox

Not yet rated
32 weekly downloads

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mozCleaner

Cleans your Firefox, Thunderbird, SeaMonkey, Fennec (unstable), Instantbird and BlueGriffon.

Rated 3 out of 5 stars (6)
5 users

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Dcurrency Requires Restart

Currency exchange rates in the status bar (data from Yahoo!Finance or Google on option).
Display currency graphs.

Rated 4 out of 5 stars (126)
2 users

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Version Number in Add-ons Manager

[Restartless] [e10s Compatible]
Easily viewable version info in the Add-ons Manager on Firefox/Thunderbird 41.0 - 56.*
Also restores the add-on version number on Firefox/Thunderbird 41.0 - 56.*.

Rated 4 out of 5 stars (4)
7 users

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Character Palette Requires Restart

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

Rated 4 out of 5 stars (16)
2 users

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Yandex.Wordstat

Shows search requests and keywords statistic in Yandex.

Rated 5 out of 5 stars (4)
31 weekly downloads

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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 (49)
0 users

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deviantART Search Plugin

A little search plugin for DeviantART

Rated 4 out of 5 stars (9)
31 weekly downloads

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WebPG for Mozilla Requires Restart

An extension which provides GnuPG/GPG/PGP related functions to Moizilla Firefox, Thunderbird and Seamonkey

Rated 3 out of 5 stars (24)
3 users

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Valencian Catalan dictionary

Free Catalan (Valencian version) spelling dictionary.

Rated 4 out of 5 stars (32)
788 users

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谷歌翻译(简体中文)

通过谷歌翻译将任何语言翻译成简体中文

Rated 4 out of 5 stars (16)
31 weekly downloads

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Version in Add-on bar Requires Restart

Show the Firefox/Thunderbird version number in the addon bar (formerly called status bar).

Rated 5 out of 5 stars (10)
7 users

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TuneIn

TuneIn Search / Busqueda en TuneIn

Not yet rated
31 weekly downloads

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Facebook Chat Download

Create a simple html page containing the whole chat. The page will contain only the chat section. All other page elements will be removed. Once the addons ends loading the chat you can save the clean page from your browser.

Rated 2 out of 5 stars (7)
1 user

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Translate Chinese to English

Translate chinese to english with google translate service.

Not yet rated
30 weekly downloads

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DuckDuckGo en français, HTTPS et SSL

DuckDuckGo, recherche sécurisée (connexion SSL), HTTPS et résultats en français (fr-fr) sont les points principaux.

Rated 5 out of 5 stars (3)
30 weekly downloads

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LEO EN-DE SSL

[SSL Version] Verwenden Sie LEOs Englisch-Deutsch Online Wörterbuch um einzelne Wörter oder Phrasen vom Englischen ins Deutsche (oder umgekehrt) zu übersetzen.

Not yet rated
30 weekly downloads

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Google Image URL Search Engine

Usage: Of the Image you want to see similar versions enter the entire link https://... to the search bar and select this engine.

This is a google image search as a search engine add-on, NOT AN EXTENSION.
Limited features but way higher safety.

Rated 4 out of 5 stars (3)
30 weekly downloads

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View Your Certificates Email Address

Adds a column for displaying the certificates Email address to the "Your Certificates" tab of the Certificate Manager

Rated 5 out of 5 stars (5)
6 users

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