Youtube Grabber

Download videos from YouTube and other sites

YoutubeGet

Download videos from YouTube and convert them

YouTube Video Converter

Download and convert your favorite YouTube videos to any format

Gihosoft TubeGet

Download videos from YouTube to your PC

Allavsoft - Video Music downloader

Download videos from YouTube and hundreds of other services

xVideoServiceThief Portable

Download videos to any PC

Live Downloader

Download music and videos from the Internet in a simple way

VidKeeper

Download videos of the leading online services

VidMasta

Search, view and download shows and films for free

youtubeFisher

The easiest way to download videos from YouTube

UltraGet Video Downloader

Download videos from YouTube and Google Video as fast as possible

save2pc

Download any YouTube video to your hard drive

Free YouTube Downloader Converter

Save YouTube videos on your PC

Veoh Web Player

Play videos and share them on the Internet

Movier

Download videos from YouTube in HD

Free YouTube to DVD Converter

Enjoy YouTube videos on a conventional DVD player

TV-FOX

More than 2,500 TV channels live from Firefox

Adobe Flash Player (Chrome, Firefox & Opera)

The web multimedia player

User Agent Switcher

Tool to switch the user agent used

Bookmark Duplicate Detector

Eliminate you duplicate bookmarks from your favorite browser

Ank Pixiv Tool

Download manga images from Pixiv

Zotero

Complete manager for citations

FireShot

Take screen captures from Firefox

Shockwave Player

The add-on to play multimedia Flash contents in 3D

Adblock Plus for Firefox

Block Internet adverts

Buffer

Share on social networks the web contents you visit

Autofill Forms

Fill in forms automatically

IE Tab

View websites as if you visited them with Internet Explorer

WebMail for Thunderbird

Use Thunderbird to manage your webmail

Video DownloadHelper

Download videos from the Internet by means of Firefox

Sparky Alexa Toolbar

Have Alexa's information in your browser