"MouseHunt" is an online, Facebook-based video game in which players take on the role of a mouse hunter. Players can earn experience points and gold by catching mice. A Hunter's Horn can be used every 15 minutes to earn more experience points based on how many other active hunters in the player's party are currently online and in the same location. A player earns 50 points just for blowing the horn and 25 extra points per party member. You'll need to play the game through Mozilla Firefox to auto-sound the horn.
Install the Firefox add-on "Greasemonkey." This add-on allows you to customize how a website behaves by utilizing a programming script. Restart your browser after installing "Greasemonkey."
Go to userscripts.org and install the "Facebook MouseHunt Game Auto Horn Blower" script. Click the "Install" button on the right side of your screen. Click the "Install" button again when the dialog box appears.
Log into Facebook and load "MouseHunt." The horn will automatically blow every 15 minutes as long as you are logged into the game, allowing you to easily earn experience points.