Take a stroll through the great ocean of applications for the beloved Mozilla Seamonquey, icon by victor1410, deviantart.com
Walnut for Seamonkey, based on icons from art.gnome.org, and sporting a wooden look. Including full support for Lightning.
Note from Mozilla: This add-on has been discontinued. Try Google Minimalist instead.
CustomizeGoogle enhances Google by adding information and removing unwanted information.
Note from Mozilla: This add-on has been discontinued. Try Forecastfox Weather instead.
Get international weather and weather forecasts with Forecastbar Enhanced.
Orbit theme with three button sizes. Go to http://www.miksworld.de/orbit.html for configuration details.
Show tooltips for links and images with URLs, icons, alt text, and long titles.
Allows to post your currently playing songs to Twitter with a click. As a bonus, you can also post the websites you're visiting, videos you're watching and more!