Add-onsExtensions
6,469 add-ons
Adblock Plus
by Wladimir Palant
748,595 weekly downloads
Annoyed by adverts? Troubled by tracking? Bothered by banners? Install Adblock Plus now to regain control of the internet and change the way that you view the web.
A short video overview is available at http://www.youtube.com/watch?v=oNvb2SjVjjISupport this add-on: Contribute $5.00
Video DownloadHelper
by mig
519,762 weekly downloads
The easy way to download and convert Web videos from hundreds of YouTube-like sites.
This works also for audio and picture galleries.
NoScript
by Giorgio Maone
433,089 weekly downloads
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.Support this add-on: Contribute $15.00
FlashGot
by Giorgio Maone
420,455 weekly downloads
Download all the links, movies and audio clips of a page at the maximum speed with a single click, using the most popular, lightweight and reliable external download managers.Support this add-on: Contribute $12.00
Greasemonkey
by Anthony Lieuallen, Aaron Boodman, others
221,114 weekly downloads
Customize the way a web page displays or behaves, by using small bits of JavaScript.
Firebug
by Joe Hewitt, johnjbarton, others
209,882 weekly downloads
Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page...
This is our production release. For Firefox 4.0b, see below.Support this add-on: Contribute $10.00
DownThemAll!
by Nils Maier, Federico Parodi, others
155,879 weekly downloads
The first and only download manager/accelerator built inside Firefox!Support this add-on: Contribute $10.00
Easy YouTube Video Downloader
by Alactro LLC
153,349 weekly downloads
Easiest Youtube video downloader ever, single click non-intrusive direct download buttons for FLV, 3GP, MP3, MP4, 720p HD and 1080p Full-HD qualities.
Download Statusbar
by Devon Jensen
110,896 weekly downloads
View and manage downloads from a tidy statusbar - without the download window getting in the way of your web browsing.
Stylish
by Jason Barnabe
102,865 weekly downloads
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.Support this add-on: Contribute $5.00
Personas Plus
by Mozilla Labs
102,351 weekly downloads
Personas are free, easy-to-install "skins" for Firefox. Personas Plus extends that built-in functionality to give you even more control and easier access to new, popular, and your own favorite Personas.
Flagfox
by Dave.G
94,599 weekly downloads
Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more...
Web of Trust - Safe Browsing Tool
by WOT Services
90,316 weekly downloads
Would you like to know which websites you can trust? The Web of Trust (WOT) add-on is a safe surfing tool for your browser. Traffic-light rating symbols show which websites you can trust when you search, shop and surf on the Web.Support this add-on: Contribute $10.00
Speed Dial
by Josep del Rio
78,269 weekly downloads
Direct access to your most visited websitesSupport this add-on: Contribute $3.99
ImTranslator - Online Translator, Dictionary, TTS
by Smart Link Corporation
74,407 weekly downloads
ImTranslator provides the most convenient access to the online translation for over 50 languages. ImTranslator includes online translator, dictionary, text to speech, virtual keyboard, spell checker, Russian decoder, back translation, email service.Support this add-on: Contribute $10.00
Ant Video Downloader and Player
by Ant.com, camille.heliostech
73,530 weekly downloads
With the Ant.com Video Downloader, you can download video from Youtube or any other streaming site. Rare are the sites you will not be able to download from. We have integrated a flash video player too, so that you can play your files immediately.
Add-on Compatibility Reporter
by Mozilla
63,255 weekly downloads
Help Mozilla make sure your favorite add-ons get updated for upcoming Firefox releases by using this extension to report whether they still work or are having some issues with alpha and beta releases. Note: Recommended for alpha and beta users only!
Web Developer
by chrispederick
58,506 weekly downloads
The Web Developer extension adds various web developer tools to a browser.Support this add-on: Contribute $9.99
IE Tab V2 (FF 3.5, 4, 5, 6, 7+)
by PCMan, ietab.net
56,537 weekly downloads
The Original, fully supported IE Tab . Embed IE in a Firefox tab. Be careful about the other IE Tab versions that include adware.
IE Tab Features: FF 4+ support, IE 6-9 compatibility, old IE Tab settings import.
IE Tab supports ICBC and alipay
Xmarks Sync
by Xmarks Inc.
55,045 weekly downloads
NOTE: Xmarks lives! Learn more at http://blog.xmarks.com . Xmarks is the #1 bookmarking add-on. Keep your bookmarks, passwords and open tabs backed up and synchronized across computers and browsers.
