FProxy

FProxy is a proxy web server that enables users to browse Freenet freesites using a standard web browser. It knows what addresses are Freenet ones, and can redirect them to the Freenet network.

Assuming you have installed Freenet as standard, the address: http://127.0.0.1:8888/∞ is your Freenet home page, created by FProxy. The addresses of all Freenet pages will start with this.

FProxy should just work automatically in the background, so if you don't understand this, don't worry, you can still use Freenet.