http://www.cosmicat.com/extensions/uptime/Report the duration of your current browser session.It's easy to lose track of time while browsing the Internet. This extension won't prevent you from doing so, but when you feel like you've been browsing too long you can ask it exactly how long your current browser session has lasted.
Compatible with Mozilla Firefox 2.0.
Adds a "Browser Uptime"
For more detailed information visit the website, please...cccextensionsBrowserUptimeFirefox Extensions
Shows you which Firefox Extension is most used. By installing Minkaku you will be able to vote for your installed extensions. Allows searches on database and provides an API.
Allow users to create and share custom styles for websites and user interface of Mozilla applications. Includes a collection of customized user styles and a forum.