To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!Close
Welcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.Close
Is it up? 0.5.1-signed.1-signed
Checks whether a website is up using http://isup.me/. Simply click on the icon at the bottom right of your screen.