There are many web-based things that technically require Internet Explorer, even though other browsers seem to work fine. The real issue is likely that most of

There are many web-based things that technically require Internet Explorer, even though other browsers seem to work fine. The real issue is likely that most of the things were built with IE in mind and only formally tested on IE. I feel like the real first step is simply to audit the functionality of these things in various browsers to see if they actually work properly or not.