Add-ons
To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
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Choose from thousands of extra features and styles to make Firefox your own.
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Adblock Plus
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:
uBlock Origin
Featured
Finally, an efficient blocker. Easy on CPU and memory.
This add-on is not compatible with your version of Firefox because of the following:
Search and New Tab by Yahoo
This Add-on sets your default Search to Yahoo, and it brings a fresh look to every new tab page, powered by Yahoo.
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 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:
Cisco WebEx Extension
Compatible with Firefox 57+
Join WebEx meetings using Firefox ™
This add-on is not compatible with your version of Firefox because of the following:
Firebug
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:
Flash Video Downloader - YouTube HD Download [4K]
Flash Video Downloader helps you download any video (flv, mp4, HD) from YouTube, Facebook, Break, Metacafe and more in one click. You can download mp3, music (iPod), avi and more. Download Flash games. Download Helper. 4K download.
This add-on is not compatible with your version of Firefox because of the following:
Hoxx VPN Proxy
Hoxx VPN Proxy service to unblock blocked websites, hide your location and encrypt your connection. Completely free.
This add-on is not compatible with your version of Firefox because of the following:
Bulk Media Downloader
Compatible with Firefox 57+
Featured
Grab and download media (image, audio, and video) resources by monitoring network (like FlashGot or Flash video downloader extensions)
This add-on is not compatible with your version of Firefox because of the following:
Download YouTube Videos as MP4
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:
AdBlock for Firefox
Compatible with Firefox 57+
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.
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:
LastPass Password Manager
LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.
This add-on is not compatible with your version of Firefox because of the following:
DolusThis add-on is not compatible with your version of Firefox because of the following:
NoScript Security Suite
Requires Restart
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:
Easy Screenshot
Capture a screenshot of the whole webpage, and save in your desktop in default.
This add-on is not compatible with your version of Firefox because of the following:
Browsec VPNThis add-on is not compatible with your version of Firefox because of the following:
Awesome Screenshot Plus - Capture, Annotate & More
Compatible with Firefox 57+
Capture the whole page or any portion, annotate it with rectangles, circles, arrows, lines and text, blur sensitive info, one-click upload to share. And more!
This add-on is not compatible with your version of Firefox because of the following:
YouTube™ Video and Audio Downloader
Downloads YouTube videos in all available formats (FLV, MP4, WebM, and 3GP) with video quality of your choice. It also contains a pure JavaScript library to extract the ORIGINAL audio file embedded in video files.
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.
