Browsers (914 programs)

Pros: Super easy to install. Lets you see animated GIFs on Facebook.

Cons: Your Facebook wall might become GIF city!. The rest of your friends must have it installed.

Pros: Works as a reminder / manager for interesting online content. Organizes saved tabs in a calendar. Includes a search tool.

Cons: Incompatibility with other extensions. Sometimes the hovering image doesn't display well.

Pros: Free to add. View 5-day forecast.

Cons: Can’t view future trends. Not available on other browsers.