Best of 2 Billion Firefox Add-ons

by Mozilla

19 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 5,346 reviews

16,156,441 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).

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 4 out of 5 stars 2,082 reviews

1,675,835 users

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...

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,567 reviews

2,065,696 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.

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 1,080 reviews

1,044,867 users

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

Google Translate, ImTranslator, Dictionary, TTS by Smart Link Corporation

Rated 4 out of 5 stars 441 reviews

277,670 users

COMPLETELY REDESIGNED TRANSLATOR FOR FIREFOX
ImTranslator translates text, words, webpages between more than 90 languages.
NEW: Inline Translator, Dictionary, access to Google Translate, Microsoft Translator. Unique on the fly localization.

Stylish by userstyles.org

Rated 4 out of 5 stars 829 reviews

386,525 users

Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Tumblr, and many, many other sites. You can even customize Firefox and other programs themselves.

Xmarks Sync by Xmarks Inc.

Rated 4 out of 5 stars 2,508 reviews

233,784 users

Xmarks is the #1 bookmarking and open tab add-on. Keep your bookmarks, and open tabs backed up and synchronized across computers and browsers. Mobile phones with Premium access. Utilize LastPass to sync passwords!

Personas Plus by Mozilla

Rated 3 out of 5 stars 853 reviews

211,546 users

Personas (now known as lightweight themes) are free, easy-to-install "skins" for Firefox. Personas Plus extends that built-in functionality to give you even more control and easier access to new, popular, and your own favorite themes.

Image Zoom by Jason Adams

Rated 4 out of 5 stars 341 reviews

116,535 users

Adds zoom and rotation functionality for images...

ReminderFox by Tom Mutdosch, Daniel Lee

Rated 4 out of 5 stars 486 reviews

62,902 users

ReminderFox displays and manages lists of reminders and ToDo's. ReminderFox makes sure you remember all of your important dates via easy-to-use lists, alerts, and alarms, right in your browser without the need for a separate calendar program.

YSlow by YSlow

Rated 3 out of 5 stars 221 reviews

54,865 users

YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages.
http://yslow.org is the official open source website.

StumbleUpon by StumbleUpon

Rated 4 out of 5 stars 214 reviews

50,492 users

StumbleUpon is the easiest way to discover new and interesting photos, videos, web pages and more, recommended by a community of experts. Tell us what you are interested in and we recommend page after page of amazing stuff you’d never expect to see.

InvisibleHand by InvisibleHand

Rated 4 out of 5 stars 180 reviews

21,032 users

Automatically get the lowest price when you shop online or search for flights. InvisibleHand shows a discreet notification when a better price is available on a product or flight you're shopping for. Covers over 580 retailers in the US, UK & Germany.

AniWeather by AniWeather

Rated 3 out of 5 stars 523 reviews

20,587 users

AniWeather = Animated Weather + Any Weather.

When it rains, it really does!

Shareaholic | share with Google, Facebook and more by The Shareaholic Team

Rated 4 out of 5 stars 256 reviews

6,624 users

Shareaholic is the easiest way to share & bookmark great content from anywhere on the web from one simple ALL-IN-ONE add-on. Works with Facebook, Twitter, Pinterest, Google, LinkedIn, E-mail and 200+ additional services.
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