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VKontakte.ru Downloader (music/videos/photos @ VK)

Download music, videos and photos from VK.com / vkontakte.ru. One-click download, natural filenames, displaying file size and bitrate for music, downloading HD video, downloading HQ photos. No spam, no usage of your account, no spyware.

Rated 5 out of 5 stars (403)
292,072 users

Gmail Manager

The original Gmail notifier for multiple accounts. Allows you to receive new mail notifications along with viewing account details including unread messages, saved drafts, spam messages, labels with new mail, space used, and new mail snippets.

Rated 4 out of 5 stars (1,339)
171,020 users

X-notifier (for Gmail,Hotmail,Yahoo,AOL ...)

Notifier for gmail, yahoo, hotmail, aol and more webmails.
X-notifier(aka WebMail Notifier) checks your webmail accounts and notifies the number of unread emails...
Supports : gmail, yahoo, hotmail, POP3/IMAP, facebook, twitter and more

Rated 4 out of 5 stars (1,613)
127,317 users

ALLYouTubeDownloader

ALLYouTubeDownloader extention (FLV/MP4/WebM; HD/HQ). Windows only. Works only with ALL YouTube Downloader 2.3 application or higher (versions 2.2 and lower doesn't work anymore).
Homepage: http://www.allplayer.org/youtube-to-allplayer

Rated 3 out of 5 stars (8)
66,341 users

Zindus

Google and Zimbra contact sync for Thunderbird. (TB 24 and above NOT supported)

Rated 4 out of 5 stars (206)
44,225 users

FB Phishing Protector No Restart

Protects you from Phishing or Scams (through XSS injection attacks) while you're on Facebook™ - Version 4.2 introduces a Tracking Protection feature as well.

Rated 5 out of 5 stars (23)
43,926 users

Yahoo! Mail Notifier

This extension notifies you when new messages arrive in your Yahoo mailbox.

Rated 4 out of 5 stars (175)
13,437 users

FoxTrick No Restart

Firefox extension for the popular Hattrick.org online football game.

It takes time for Mozilla to review updates thus this version might be out of date sometimes. The latest stable release can always be found on https://www.foxtrick.org/download

Rated 5 out of 5 stars (53)
13,228 users

Facebook Message Seen Disable No Restart

Facebook Message Seen Disable lets you turn off Facebook's Message Seen feature automatically for your account. You can still use Seen feature for others.

Rated 5 out of 5 stars (2)
13,081 users

Webmaster SAPE

Toolbar contains a set of functions, which expands the abilities of webmasters and optimizers, when working in the interface of SAPE exchange.

Rated 5 out of 5 stars (162)
11,302 users

Forecastbar Enhanced

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

Get international weather and weather forecasts with Forecastbar Enhanced.

Rated 4 out of 5 stars (167)
5,926 users

Galaxytoolbar

A Firefox extension for the OGame Galaxytool to keep it up-to-date.

Rated 4 out of 5 stars (14)
5,179 users

YouTube Videos Download in one click

Download YouTube videos by clicking a button underneath videos in YouTube. Save YouTube videos and songs in 1080p (HD) MP4 or FLV format.

Rated 3 out of 5 stars (19)
4,505 users

FoxGame

Enhance user experience with OGame.

Rated 5 out of 5 stars (32)
1,917 users

GitHub Extension Installer No Restart

Install Browser Extensions straight from GitHub Repositories

Rated 5 out of 5 stars (6)
1,849 users

Gfire WebGame Detection Plugin

This extension tells Xfire and Gfire about the webgame you currently play.

Rated 4 out of 5 stars (1)
560 users

ConQuery

Context searching for everyone and URL manipulation tool for advanced users...

Rated 5 out of 5 stars (38)
539 users

WOT Play Replay

Данное приложение расширяет возможности сайта wotreplays.ru

Rated 5 out of 5 stars (1)
397 users

ActiveInbox for Gmail

Effortless Email Management: prioritize and track important emails, move projects forward and do emails faster.

(Gmail plugin for tasks, projects, inbox zero, gmail folders, GTD and more)

Rated 4 out of 5 stars (139)
374 users

log2stas LiveJournal Add-on

a) Auto-expand comments threads b) Copy a fragment of text or link to a picture to LJ editor from other pages. c) Simplify use of lj-cut d) Allow quickly switch between anonymous and normal browsing.

Rated 3 out of 5 stars (3)
264 users