Add-ons

DownThemAll! by Nils Maier, Federico Parodi, others

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

FlashGot Mass Downloader by Giorgio Maone

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.

NetVideoHunter by netvideohunter

This add-on is a downloader that lets you easily download videos from sites like Youtube, Facebook, Metacafe, Dailymotion, Break, VKontakte and music for example from SoundCloud, Grooveshark and from many other sites...

MinimizeToTray revived by Nils Maier

Minimizes windows into the system tray.

Bluhell Firewall by Diego Casorran

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

WorldIP - Geo Add-on with Security Features by Alrond

Professional Geo Add-on with security features and advanced network tools. Anti-phishing. Protection against DNS spoofing and fake sites. All DNS records for domain. The real location of web server, country flag, extended information about datacenter

AutoPager by Wind Li

AutoPager automatically loads next pages when you reach the end of a page. It works on a ton of sites,Google,Yahoo..
It works well with most other add-ons adblock plus, WOT and most of the greasemonkey scripts.
You can also try AutoPagerLite.

Ubuntu clear by hecticpoodle

Ubuntu - Linux for Human Beings by Fenouille84

My Fedora theme by mama-sun

St. Patricks Day - luck of the Irish by ReelButter

Blue Blue Christmas by MaDonna by MaDonna

Ubuntu Studio - Blue on Black by MrSchism

Navy Blue and Black by dean_machine

Modern Sunstet v2 by xBobbE