In other words, I don’t fire up Parallels or VMware Fusion just to run IE. If you really, REALLY need IE on the Mac, I am fond of running CrossOver Mac that allows me to run the single instance of IE. Fortunately, this can be easily fixed by either changing the “User Agent” in Safari’s developer menu (thereby “spoofing” the website into thinking Safari is acting like IE), or simply downloading Firefox or Chrome for the Mac. On a Mac, this means Safari won’t let you into those sites and you’ll get a messages similar to above. And if you’re going to do that, you go for the browser that has the largest market share, which means that Internet Explorer (running on Windows) is going to win out. Sometimes it’s just easier to standardize on one browser type and require visitors to conform. The reasons for requiring a certain browser can vary, but if you’ve ever developed a website, you know there are some annoying differences between how various web browsers render HTML. From Wikipedia: Usage share of web browsers
