Why should you remove Shopper Pro by Goobzo? Well, the Shopper-Pro Terms and Conditions states the following:
The Software provides a suite of browser features that enhance your online shopping experience when browsing various websites by rendering relevant information such as price comparison information, relevant coupons, cash-back opportunities and image search etc.
In other words: Adware.
The AVG anti-virus program reports it as MalSign.Skodna.A8D and VIPRE as Goobzo (fs).
You can uninstall ShopperPro from the Add and Remove Programs dialog.