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1-Click YouTube Video Download

The simplest YouTube Video Downloader for all YouTube Flash sites, period.

Rated 5 out of 5 stars (331)
814,443 users

1-ClickWeather

Note from Mozilla: This add-on has been discontinued. Try Forecastfox Weather instead.

1-ClickWeather for Firefox enables users to quickly view current weather conditions.

Rated 3 out of 5 stars (479)
15,139 users

1-Line

SuperCharged Viral Charity Incentive through Email Signature Donation.

Not yet rated
6 users

10betterpages

10betterpages is an extension that provides 10 better pages related to the page you are visiting. The ranking is depending on users' behavior and the links are coming from our users and our servers. (check http://www.10betterpages.com for a tour)

Rated 4 out of 5 stars (5)
6 users

123 Travel Search

Creates 3 small travel search icons on the bottom of your browser. When clicking on them, they will create a little search box which allows you to enter your travel details once and then select the providers you want to see...

Not yet rated
7 users

133Lab right-click image upload

Mit diesem Add-On können Sie einfach Bilder von anderen Webseiten auf den Image Hoster von 133Lab hochladen.

Not yet rated
5 users

15-18

Retrouvez les derniers topics du forum 15-18 Ans de Jeuxvideo.com, ainsi que des raccourcis vers des sites tels que NoelShack, Hapshack, NoelShare... ! Ainsi que les smileys !

Not yet rated
10 users

1g1g Music Bar

亦歌音乐栏

Rated 4 out of 5 stars (13)
248 users

1mg.ro - Image Uploader Plugin

Rehost your favorites images with 1mg.ro

Not yet rated
5 users

1TuDien

1TuDien.com - Dictionary for Vietnamese and Vietnamese Learner. Now supporting 5 languages: Vietnamese, English, French, Chinese and Japanese. 1TuDien also supports translating with 1640 pairs of languages.

Rated 4 out of 5 stars (27)
2,565 users

2 Pane Bookmarks

This provides separated "Bookmarks" Sidebar panel like Opera.

Rated 4 out of 5 stars (72)
7,608 users

2-Click Like

Protects your privacy by converting normal Like buttons to 2-Click buttons and thus not tracking you.

Rated 5 out of 5 stars (3)
506 users

2147M Search Engine

Search Engine For 2147m.com/

Not yet rated
4 users

22Pixels Sidekik

Access Live RSS Feeds And Other Data From Your...

Not yet rated
3 users

2chまとめReader No Restart

2chまとめサイトのブラウズを支援します

Not yet rated
1,594 users

2chブラウザで開く

リンク先が2chのリンクぽかったら2chブラウザで開きなおします。

Rated 2 out of 5 stars (1)
2,383 users

2Favorite

Store, share and tag your bookmarks.
إحفظ وإنشر مواقعك المفضلة بأمان أونلاين

Not yet rated
33 users

2IP сервисы

Тесты и сервисы сайта 2IP.ru в вашем браузере в виде тулбара и контекстного меню. Проверка различных показателей сайта в один клик.

Rated 5 out of 5 stars (1)
1,394 users

2old2play

A Firefox toolbar to assist in 2old2play.com site navigation. Brings all aspects of the website directly to your browser including messaging, direct links to the podcasts and magazine, and full site...

Not yet rated
5 users

2КОМ No Restart

2kom.ru

Rated 1 out of 5 stars (1)
403 users