Featured Add-ons

by Mozilla

148 Add-ons in this Collection

Quick Translator by igv

Rated 5 out of 5 stars 467 reviews

277,198 users

The most lightweight and easiest translator. Translate between more than 80 languages with one click or a hot key. Translate from one word to a whole page.

QuickJava by Doug G

Rated 5 out of 5 stars 246 reviews

288,106 users

Allows quick enable and disable of Java, Javascript, Cookies, Image Animations, Flash, Silverlight, Images, Stylesheets and Proxy from the Toolbar. This is great for increasing security or decreasing bandwidth.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 240 reviews

422,096 users

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Tab Mix Plus by onemen, Gary Reyes

Rated 4 out of 5 stars 2,492 reviews

1,005,664 users

Tab Mix Plus enhances Firefox's tab browsing capabilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager.

FoxyProxy Standard by Eric H. Jung, groeg, others

Rated 4 out of 5 stars 334 reviews

344,506 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.

S3.Google Translator by Oleksandr

Rated 5 out of 5 stars 188 reviews

236,831 users

S3.Google Translator adds the power of Google Translate’s automatic translations to your browser!
It supports translation of selected text, entered phrase or whole webpage between any of 80+ languages.

New Feature: Language learning!

YouTube Unblocker by Jaken3rd

Rated 4 out of 5 stars 117 reviews

259,779 users

Watch blocked YouTube videos – YouTube proxy-server, only if needed!

✓ free unblocking of YouTube videos /-search
✓ unblock embedded videos (e.g. Facebook)
✓ unblocking via proxy (no VPN)
✓ fast unblocking + fast streaming (HD)
✓ totally legal

YouTube High Definition by Baris Derin

Rated 5 out of 5 stars 219 reviews

288,250 users

YouTube High Definition is a powerful tool that will let you automatically play all YouTube videos in HD (High Definition), turn off annotations, change video player size, auto stop videos, auto mute videos, control embedded videos and much more.

BetterPrivacy by IKRG

Rated 5 out of 5 stars 426 reviews

607,119 users

Remove or manage a new and uncommon kind of cookies, better known as LSO's.The BetterPrivacy safeguard offers various ways to handle Flash-cookies set by Google, YouTube, Ebay and others...

Latest updates: See bottom link 'version history'!

EPUBReader by epubreader

Rated 5 out of 5 stars 159 reviews

471,737 users

With EPUBReader you can read ePub files just in Firefox. No additional software needed!

FireFTP by Mime Čuvalo

Rated 4 out of 5 stars 919 reviews

633,205 users

FireFTP is a free, secure, cross-platform FTP/SFTP client for Mozilla Firefox which provides easy and intuitive access to FTP/SFTP servers.

Check out my new project, FireSSH!

Video WithOut Flash by TheDrev

Rated 4 out of 5 stars 48 reviews

72,240 users

Watch videos without flash

Download Status Bar by Szalgiris

Rated 5 out of 5 stars 316 reviews

266,738 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.

Bluhell Firewall by Diego Casorran

Rated 5 out of 5 stars 223 reviews

142,177 users

Get a faster browsing experience by blocking nasty web resources using Bluhell Firewall, the lightweight Ad-Blocker and Tracking/Privacy Protector.

Disconnect by Disconnect

Rated 4 out of 5 stars 138 reviews

259,826 users

Make the web faster, more private, and more secure.
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