Up & Coming Extensions

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uc

A userChromeJS clone with built-in subscript/overlay loader capability.

Rated 5 out of 5 stars (17)
1,215 users

CleanHide

if you find some web page use Hidden Text insert in normal articles,try this.

Rated 5 out of 5 stars (1)
1,028 users

Quick Markup

Capture webpage freely, mark up with shape, text and mind mapping information, one-click upload to share. Support PNG and shortcuts. Useful in organizing ideas, planning and tracking projects, solving the problem of image-based information exchange.

Rated 4 out of 5 stars (22)
1,996 users

GoToMeeting Free Screen Sharing No Restart

Add-on that enables screen sharing in GoToMeeting Free on Firefox

Not yet rated
5,063 users

Extension Defender No Restart

Protect Firefox with Extension Defender, scan your extensions for unwanted or malicious apps. Install Extension Defender and stay protected.

Rated 4 out of 5 stars (8)
3,892 users

Show Password Field No Restart

Show your password in a readable format in the password fields of the web pages.

Rated 5 out of 5 stars (3)
2,029 users

Simple YouTube to MP3/MP4 Converter and Downloader No Restart

Download youtube videos as mp3/mp4/ogg/webm fast and easy! Adding mirrors everyday to decrease any downtime! We monitor comments and work to fix any problems as soon as possible!

Rated 5 out of 5 stars (212)
82,967 users

Notifier for Twitter™ No Restart

Notifier for Twitter™ is a fully-fledged Twitter client for your browser

Rated 3 out of 5 stars (6)
1,168 users

Disable Private Browsing Plus

Disable Private Browsing menu option and keyboard shortcut. Disable deletion of browsing history.

Rated 4 out of 5 stars (31)
6,260 users

SSleuth No Restart

How strong is your HTTPS connection? SSleuth ranks an established SSL/TLS connection and gives a brief summary of the cipher suite, certificate and other SSL/TLS parameters.

Rated 5 out of 5 stars (8)
1,917 users

FLVCD Helper

Download video and music from Youku,Tudou,iQiyi,Sohu and so on.

Rated 4 out of 5 stars (13)
3,201 users

FireX Proxy

FireX Proxy extension.

Rated 5 out of 5 stars (11)
6,220 users

Snip-Me | Amazon-Preisverlauf und Preisüberwachung No Restart

Das Add-on ermöglicht Preise auf Amazon per E-Mail oder RSS zu überwachen und alte Preise in Form von Preisentwicklungs-Diagrammen einzusehen.

Rated 5 out of 5 stars (15)
6,760 users

URL Logger

Log location changes to logfile on filesystem. Also keeps a logfile updated with active tab location and another file with locations of all tabs.

Rated 5 out of 5 stars (4)
2,523 users

Unblock Facebook in Vietnam No Restart

Unblock Facebook extensions allows you to enjoy Facebook blocked by ISPs like VNPT, FPT and Viettel.

Rated 4 out of 5 stars (3)
2,235 users

Tab Mix Lite

Simple add-ons for tabbed browsing.

** To keep this extension "lite", I am sorry that I could not accept feature requests.
** This extension is NOT Tab Mix Lite CE.

Rated 4 out of 5 stars (57)
5,349 users

AdBlock for Firefox No Restart

The most popular ad blocker for Chrome and Safari, now available for Firefox! Block all advertisements on all web pages, even Facebook, Youtube, and Hulu. Browse faster, too! Most ads aren't even downloaded at all, saving you time and bandwidth.

Rated 3 out of 5 stars (27)
128,085 users

SpeakingFox

Converts text to audible speech on Mac OS X.

Rated 4 out of 5 stars (23)
1,071 users

Full Fullscreen

Note from Mozilla: This add-on has been discontinued. Try one of these instead.

Get rid of all toolbars in fullscreen for kiosk applications.

Rated 4 out of 5 stars (94)
12,071 users

Modify Headers

Add, modify and filter the HTTP request headers sent to web servers. This addon is particularly useful for Mobile web development, HTTP testing and privacy.

Rated 4 out of 5 stars (70)
139,320 users