This message is appearing because this web browser does not support specific HTML 5 standards used by SchoolFi.
Several key features of this web application such as document signing and choosing colors will not function correctly.
Known Supported Browsers:
Any browser with Canvas 2d graphics and Input type=color support. (This includes almost all web browsers on the Android 4+ and IOS 7+ (iPhone and iPad) platforms.
HTML 5 Test is a website that detects and displays level of HTML 5 support a web browser has.