Add-ons
To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
CloseWelcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.
CloseExtensions by Weekly Downloads
Sort by:
Adblock Plus
No Restart
Featured
Blocks annoying video ads on YouTube, Facebook ads, banners and much more.
Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).
This add-on is not compatible with your version of Firefox because of the following:
Video DownloadHelper
The easy way to download and convert Web videos from hundreds of YouTube-like sites.
This works also for audio and picture galleries.
This add-on is not compatible with your version of Firefox because of the following:
anonymoX
Easy anonymous web browsing.
– Change your IP-Address and country
– Visit blocked or censored websites.
– Delete cookies, show your public ip, and more
We provide the proxy servers, no external proxies or other programs required
This add-on is not compatible with your version of Firefox because of the following:
SimilarWeb - Insights on Websites
Discover useful traffic insights about the websites you visit. Find out how big the websites you visit are on the internet and in their categories. Get instant knowledge on the main sources of traffic bringing users to the website you’re viewing.
This add-on is not compatible with your version of Firefox because of the following:
Flash Video Downloader - YouTube Full HD Download
Flash Video Downloader helps you to download any video (flv, mp4, HD) from YouTube-like, Facebook, Break, Metacafe and more in one click. You can download mp3, music (iPod), avi and more. Download Flash games. Download Helper.
This add-on is not compatible with your version of Firefox because of the following:
Firebug
No Restart
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 add-on is not compatible with your version of Firefox because of the following:
Ant Video Downloader
It has never been simplier to download videos from Youtube, Dailymotion and from most of the video streaming site.
Just play the video, click on the toolbar, download and play it immediately in our integrated video player.
This add-on is not compatible with your version of Firefox because of the following:
1-Click YouTube Video Download
The simplest YouTube Video Downloader for all YouTube Flash sites, period.
This add-on is not compatible with your version of Firefox because of the following:
DownThemAll!
Featured
The first and only download manager/accelerator built inside Firefox!
This add-on is not compatible with your version of Firefox because of the following:
YouTube Downloader Lite
No Restart
A very lite YouTube Downloader (FLV, WebM, 3GP, and MP4)
This add-on is not compatible with your version of Firefox because of the following:
Download YouTube Videos as MP4
No Restart
Featured
An extension that adds direct links to download YouTube videos as MP4 and FLV. It has a simple interface and it downloads videos directly from YouTube. The extension integrates with YouTube's interface and adds a download button below the player.
This add-on is not compatible with your version of Firefox because of the following:
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.
This add-on is not compatible with your version of Firefox because of the following:
Ghostery
No Restart
Featured
Protect your privacy. See who's tracking your web browsing and block them with Ghostery.
This add-on is not compatible with your version of Firefox because of the following:
Greasemonkey
Featured
Customize the way a web page displays or behaves, by using small bits of JavaScript.
This add-on is not compatible with your version of Firefox because of the following:
Adblock Plus Pop-up Addon
Adblock Plus Pop-up Addon extends the blocking functionality of Adblock Plus to those annoying pop-up windows that open on mouse clicks and other user actions.
This add-on is not compatible with your version of Firefox because of the following:
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.
This add-on is not compatible with your version of Firefox because of the following:
DoNotTrackMe: Online Privacy Protection
Protect your privacy. Stop companies and advertisers from tracking your browsing and sending you spam email.
This add-on is not compatible with your version of Firefox because of the following:
Adblock Edge
No Restart
Adblock Edge is a fork of the Adblock Plus version 2.1.2 extension for blocking advertisements on the web, without sponsored ads whitelist.
This add-on is not compatible with your version of Firefox because of the following:
FlashGot Mass Downloader
Featured
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.
This add-on is not compatible with your version of Firefox because of the following:
Easy Youtube Video Downloader Express
No Restart
Only one with 1080p Full-HD and 192kbps MP3 Direct Links - 100% clean (no adware/nagware) addon for superfast and easy downloads in FLV,3GP,MP3,MP4,720p, 1080p qualities on Youtube pages.
This add-on is not compatible with your version of Firefox because of the following:
To create your own collections, you must have a Mozilla Add-ons account.
