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Complete Themes by Mozilla

Complete Themes transform the look of your browser with styles for the window frame, address bar, buttons, tabs, and menus. New featured complete themes are picked by a community board every quarter!

1,028 followers

ADD/ADHD in Firefox (Jacek's Favorites) by absjacek

THE Cure for ADHD - Food for Your Restless Mind Interpreted Vicariously in Firefox!
Collection of addons for Internet addicts and the uber-/omni-curious minds.

999 followers

Downloadsquad Pack by filmgirl

Soup up your browser with selections from the Downloadsquad.com staff and some of our readers' favorite add-ons. They'll help make your browsing safer, more hassle free, and more productive!

939 followers

Firefox 4.0 Theme & Features by muckSponge

Get Firefox 4.0 Theme & Features in Firefox 3.5+

863 followers

Privacy by Mozilla

Privacy is an essential part of Internet life. Here is a collection of add-ons to help protect your privacy.

833 followers

Gmail Addons you must have! by The WiseStamp Team

Using Gmail?
Gmail's good, but it could be better...in this collection we gather the Best Gmail extensions just for you.
☛ Subscribe to this collection and get all Addon updates.

788 followers

Web Application Security Penetration Testing by adammuntner

Web hacking tools for Firefox

Plugins are maintained by their authors. We maintain the list, but can not guarantee the trustworthiness of plugins.

Maintained by Gotham Digital Science

743 followers

Multimedia Pack by Lifehacker.Addons

Handles your pictures, music, videos, and other media better than the defaults.

742 followers

Web Pro by webilu

Design, develop, maintain and search web pages even more elegant and agile: • sketch • script • validate • debug • analyze • optimize • monitor • compare • grab • record • look up.

708 followers

Icon-Only Perma-Tabs for Gmail and Google Reader by Gina Trapani

Keep your Gmail and Google Reader tabs open at all times, but shrink them down to show the favicon only and add your unread count on the icon.

678 followers

Performance Pack by Lifehacker.Addons

Tools to strip out Flash, big images, advertisements, and other web drags.

677 followers

Firefox Ultimate 2012 by dagnym

Cross-browser toolkit allowing for enhanced web browsing equipped with productive, rapid, and convenient viewing with the possibility to download whatever you need to download at will.

658 followers

Firefox Ultimate by Anonymous-2663663

Optimize your Firefox to fit exactly what you like to do online.
- Daily update with selected "Recommended add-on".
- Recommended Scripts for Greasemonkey

622 followers

Heavy User Add-ons Pack v1.8 by intoxikator

A quality-focused pack of the best, most productive + efficient addons for heavy FF users, hand-selected.
I remove/re-add, lower/increase my ratings of addons as they change with each iteration

619 followers

Add-ons for Facebook by The Shareaholic Team

Makes using and managing Facebook easier and more fun.

580 followers

Lifehacker's Must-Have Extensions by gallegr1

An automatically generated list of my installed add-ons

565 followers

Lifehacker Top 10 Must-Have Extensions for 2009 by James Joaquin

The 2009 Editor's Choice of top 10 Firefox extensions, from the website Lifehacker.com
Google Gears is not included as it's not on AMO. Available at gears.google.com

526 followers

SpeedBrowsing by Ly Quoc Chinh

Extension for speed, beta tester and optimization.

505 followers

Browsing with real pleasure - all what you need by Allexxandra

To my mind these add-ons are some of the best and are most useful. I really like Mozilla for such addons. I will add new ones.

496 followers

Only for Firefox 4 by esorhjy

good add-ons only use in firefox 4

488 followers