Unfortunately, as cool as both of these are (and I am now very tempted to go back to Firefox, especially given the way it syncs with its Android cousin) there have been some changes within them that casue problems within Therap.
Most notable of these is when submitting Attendance.
If you are experience, the solution for now is to revert to you previous browser.
We are working on this and hope to have a solution soon.
:: Justin ::
This issue has now been resolved and Attendance will work just fine in Chrome or Firefox 4