Add-ons for Firefox

Add on style. Add on function. Add features to Firefox.
Choose from 5000 free extras to make your browser look and function the way you want.
An add-on can be a new time-saving toolbar button, a shortcut to search, a themed look, and more. Add-ons make browsing easier.
Choose add-ons for the way you browse. Install in a few clicks and they stay up to date with easy reminders. Explore and add on now!
Build the perfect website

FireFTP
FireFTP is a free, secure, cross-platform FTP client for Mozilla Firefox...
Download Now recommended

FoxyProxy Standard

FoxyProxy is an advanced proxy management tool that completely replaces...

Download Now recommended

YSlow

YSlow analyzes web pages and why they're slow based on Yahoo!'s...

Download Now recommended

Get the latest scores and highlights

Research anything online

gTranslate

With gTranslate you can translate any text in a webpage just by selecting...

Download Now

Wired-Marker

Wired-Marker(http://www.wired-marker.org/en/) is a permanent...

Download Now

Answers

1-Click Answers TM will save you even more time with AnswerTips that...

Download Now recommended

Like these? Find more add-ons in the Reference Desk collection.

Get the most out of your money

Coupons24.com

Notifies you when coupon codes are available for popular shopping websites.

Download Now

myTimeZone for eBay

Automatically converts times on eBay pages to your local time zone and...

Download Now

Woot Watcher

Woot Watcher monitors the Woot! web site, and keeps you updated with the...

Download Now

Like these? Find more add-ons in the Online Shopping collection.

Plan business trips and unforgettable vacations

Yapta

Comparison shop for the best fares on airline websites. Yapta will track...

Download Now

Minimap Sidebar

The Minimap Addon gives you a suite of built-in maps and mapping tools for...

Download Now

1-ClickWeather

1-ClickWeather for Firefox enables users to quickly view current weather...

Download Now

Like these? Find more add-ons in the Traveler's Pack collection.

Browse Add-ons

Download Now recommended

Screengrab by Andy M

Screengrab! saves webpages as images...

It will capture what you can see in the window, the entire page, just a selection, a particular frame... basically it saves webpages as images - either to a file, or to the clipboard.

Rated 5 out of 5 stars 294 reviews 50,378 weekly downloads Updated July 17, 2009

Download Now recommended

WebMail Notifier by Byungwook Kang

WebMail Notifier checks your webmail accounts and notifies the number of unread emails...
Supports : gmail, yahoo, hotmail, daum, naver, empas, nate and more

Rated 4 out of 5 stars 739 reviews 55,764 weekly downloads Updated November 21, 2009

Support this add-on: Contribute $3.99

Download Now recommended

TwitterBar by Christopher Finke

Post to Twitter from your address bar.

Rated 5 out of 5 stars 101 reviews 22,772 weekly downloads Updated October 21, 2009

Support this add-on: Contribute $0.99

Download Now recommended

SimilarWeb - The Ultimate Discovery Tool by SimilarWeb

Instant access to the best sites related to the one you are browsing! Vote if sites are similar or not and personalize your results. Get related articles while reading one and read web comments of sites you are browsing.

Rated 5 out of 5 stars 20 reviews 12,741 weekly downloads Updated October 13, 2009

Support this add-on: Contribute $5

Collections

Collections are a way for you to categorize, mix, match and mingle add-ons. Subscribe to collections created by other users or create your own.

Popular Collections

Windows 7 Theme for Firefox 3.5 by Enkei

Seamlessly Perfect Windows 7 Theme for Firefox 3.5 - Google Tweaked - Time Conserving add-ons (skip screen, showcase, smarterfox) - Stylish Add-on with Styles list!

11 add-ons 23388 subscribers

Web Developer's Toolbox by Mozilla

Speed up the development process by using add-ons to troubleshoot, edit, and debug web projects without ever clicking away from Firefox.

12 add-ons 7057 subscribers

Reference Desk by Mozilla

Make the librarian jealous with add-ons that help students, researchers or anyone with a tough question find and document all the answers.

13 add-ons 4389 subscribers

Lifehacker's Must-Have Extensions by Lifehacker.Addons

Ten broadly useful extensions, as detailed at: http://bit.ly/10Xxc (There are technically 10, but Gears can't be installed from Mozilla's site)

9 add-ons 3526 subscribers

Better Pack by Lifehacker.Addons

Lifehacker's "Better" add-ons, compiling multiple Greasemonkey tweaks for YouTube, Reader, Gmail, Google Calendar, Flickr, and other sites.

6 add-ons 2380 subscribers

View All Collections

Categories

Most Shared Add-ons (Last 7 Days)

Build a Firefox Add-on

Add on style. Add on function. Add features to Firefox.

Build the perfect website

FireFTP

FoxyProxy Standard

YSlow

Get the latest scores and highlights

College Basketball Boom - follow your favorite NCAA team

ESPN

HitWicket

Research anything online

gTranslate

Wired-Marker

Answers

Get the most out of your money

Coupons24.com

myTimeZone for eBay

Woot Watcher

Plan business trips and unforgettable vacations

Yapta

Minimap Sidebar

1-ClickWeather

Browse Add-ons

Screengrab by Andy M

WebMail Notifier by Byungwook Kang

TwitterBar by Christopher Finke

SimilarWeb - The Ultimate Discovery Tool by SimilarWeb

Collections

Popular Collections

Windows 7 Theme for Firefox 3.5 by Enkei

Web Developer's Toolbox by Mozilla

Reference Desk by Mozilla

Lifehacker's Must-Have Extensions by Lifehacker.Addons

Better Pack by Lifehacker.Addons