One relative unknown feature of Firefox 3 is the ability to manage plugins in the browser’s interface. Many would be surprised that this feature is now available in the Firefox Add-ons menu. The add-ons menu has been revamped in Firefox 3 to include new features such as searching for and installing Firefox add-ons right from [...]
Check and Remove Plugins in Firefox
The terminology used by the Mozilla team is sometimes a little bit confusing. Could you for instance define the differences between add-ons, extensions and plugins ? The first two and the latter are different which is easy to explain. Plugins are installed by third-party applications while add-ons and extensions are installed by the user himself.

