Real-Time Design

While trying to surf the Staples website with Mozilla:

The web browser you are using is incompatible. We are sorry for the inconvenience. Our site currently supports only Internet Explorer version 4.0 and 5.0. This is due to the advanced features used in the real-time designer.

Well heck, if I had a real-time designer with advanced features I wouldn’t give a hoot about Mozilla either.