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Easy Youtube Video Downloader Express No Restart

Only one with 1080p Full-HD and 192kbps MP3 Direct Links. A clean, fast and simple addon for superfast and easy downloads in FLV,3GP,MP3,MP4,720p, 1080p qualities on Youtube pages.

Rated 5 out of 5 stars (397)
411,654 users
Updated March 5, 2015

TotalSpoof No Restart

Set most common Firefox user-agent and window.navigator values.

Not yet rated
195 users
Updated March 5, 2015

Screengrab (fix version)

Screengrab! saves webpages as images.
0.98 released!
New features: upload to internet

Rated 5 out of 5 stars (235)
150,105 users
Updated March 4, 2015

Ghostery No Restart

Protect your privacy. See who's tracking your web browsing and block them with Ghostery.

Rated 5 out of 5 stars (1,082)
1,444,848 users
Updated March 4, 2015

Imagus No Restart

Enlarge thumbnails, and show images/videos from links with a mouse hover.

Rated 5 out of 5 stars (23)
8,110 users
Updated March 3, 2015

CookieKeeper No Restart

Extended Cookie Manager - Keep only wanted cookies.

Rated 4 out of 5 stars (34)
12,454 users
Updated March 2, 2015

NetVideoHunter - YouTube Video Downloader

This add-on is a downloader that lets you easily download MP4 videos and MP3 music from sites like Youtube, Facebook, Metacafe, Dailymotion, Break, VKontakte and music for example from SoundCloud, Grooveshark and from many other sites...

Rated 4 out of 5 stars (345)
301,933 users
Updated March 2, 2015

DontPhishMe

DontPhishMe is an Anti-Phishing addon for Mozilla Firefox which utilizes the pattern matching techniques to provide the Malaysian Internet user with information and notification to protect them against online banking phishing website.

Rated 5 out of 5 stars (1)
1,093 users
Updated March 1, 2015

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 (1,605)
126,081 users
Updated March 1, 2015

NoScript Security Suite Featured

The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.

Rated 5 out of 5 stars (1,454)
2,300,222 users
Updated March 1, 2015

SQLite Manager

Manage any SQLite database on your computer.

Rated 5 out of 5 stars (30)
211,014 users
Updated February 28, 2015

SeaTab-X-2

Adds Firefox-style tab closers into SeaMonkey.

Rated 5 out of 5 stars (13)
610 users
Updated February 28, 2015

Keychain Services Integration

Store usernames and passwords in your Mac OS X Keychain.

Rated 4 out of 5 stars (80)
4,084 users
Updated February 28, 2015

Stylish

Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Orkut, and many, many other sites. You can even customize Firefox and other programs themselves.

Rated 4 out of 5 stars (729)
765,890 users
Updated February 27, 2015

YouTube Flash Video Player No Restart

YouTube Flash Video Player is a powerful tool that will let you choose Flash video player as default YouTube video player.

Rated 5 out of 5 stars (11)
211,135 users
Updated February 27, 2015

Download Flash and Video

Download Flash and Video is a great download helper tool that lets you download Flash games and Flash videos (YouTube, Facebook, Dailymotion, Google Videos and more) with a single click.
The downloader is very easy to use.

Rated 4 out of 5 stars (290)
712,792 users
Updated February 26, 2015

YouTube High Definition No Restart

YouTube High Definition is a powerful tool that will let you automatically play all YouTube videos in HD (High Definition), turn off annotations, change video player size, auto stop videos, auto mute videos, control embedded videos and much more.

Rated 5 out of 5 stars (191)
294,546 users
Updated February 26, 2015

Twitter App

Twitter App brings Twitter right into your Firefox Sidebar.

Rated 5 out of 5 stars (10)
15,226 users
Updated February 26, 2015

Thumbnail Zoom Plus

Shows full image when you hover over a thumbnail. Works with Amazon, Baidu Images, Bing Images, Facebook, Flickr, Google+, Google Images, IMDb, LinkedIn, Netflix, Pinterest, Reddit, Twitter, Yandex, YouTube, Wikipedia, Yahoo Images, & many more.

Rated 5 out of 5 stars (283)
142,697 users
Updated February 25, 2015

It's All Text!

Edit textareas using an external editor, because it's all text!

Right click on a textarea, select "It's All Text!" and edit the text in the editor of your choice.

Alternatively, click on the edit buttons added for your convenience. Right click on ...

Rated 4 out of 5 stars (184)
13,594 users
Updated February 25, 2015