Prototypes
About Facebook Prototypes
Prototypes are product experiments built by Facebook engineers. Activate any of these Prototypes to try them out. Please keep in mind they are sometimes buggy. They can also change very rapidly or be taken down without notice.
To remove and manage your Prototypes, please visit the Application Settings pages.
For Mac OS X, Adds Notifications to your desktop, alerting you when interesting activity happens on Facebook.
37,356 activations
Gross National Happiness shows trends of happiness based on the use of words and phrases on Facebook's public and semi-public forums.
4,004 activations
Gives you an easy, one-click way to find similar posts right from your homepage.
by Paul McDonald
Includes an iCal file as an attachment to your Event Invitation emails, enabling better integration with external calendaring solutions (Outlook, Google Calendar, etc).
Search for photos that your friends are tagged in.
Add a filter to the homepage that shows what your friends are commenting on.
A new photo uploading experience on Facebook.