Featured Add-ons

by Mozilla

145 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,303 reviews

18,411,947 users

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).

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 5 out of 5 stars 1,403 reviews

1,536,680 users

The first and only download manager/accelerator built inside Firefox!

Download YouTube Videos as MP4 by ialc

Rated 4 out of 5 stars 239 reviews

845,889 users

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.

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,321 reviews

2,193,669 users

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.

Ghostery by José María Signanini, Brad McDermott

Rated 5 out of 5 stars 860 reviews

1,150,883 users

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

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 866 reviews

1,621,873 users

Customize the way a web page displays or behaves, by using small bits of JavaScript.

FlashGot Mass Downloader by Giorgio Maone

Rated 5 out of 5 stars 431 reviews

1,197,487 users

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.

Web of Trust - WOT by WOT Services

Rated 4 out of 5 stars 1,337 reviews

1,256,781 users

Find out which websites you can trust. WOT adds intuitive traffic light-style icons next to search results and URLs to help you make informed decisions about whether to visit a site or not.

Stylish by Jason Barnabe

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.

LastPass Password Manager by LastPass

LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.

YouTube Unblocker by Jaken3rd

Rated 4 out of 5 stars 91 reviews

217,651 users

Watch blocked YouTube Videos automatically with our high-speed Proxy Server ☺

✓ Unlock all YouTube Videos
✓ Fast
✓ Reliable
✓ Safe
✓ No Ads

You can find the latest Version here http://www.unblocker.yt

YouTube High Definition by Baris Derin

Rated 5 out of 5 stars 111 reviews

240,270 users

YouTube High Definition is a powerful tool that will let you play all YouTube videos in High Definition automatically.

FoxyProxy Standard by Eric H. Jung

Rated 4 out of 5 stars 295 reviews

370,999 users

FoxyProxy is an advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic.

Download Status Bar by Szalgiris

Rated 5 out of 5 stars 199 reviews

216,107 users

If you are the kind of person who likes to have total control over every aspect of your downloads, "Download Status Bar" is the add-on you are looking for.

Flagfox by Dave G

Rated 5 out of 5 stars 581 reviews

795,226 users

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...
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