The MIDM is supported on Mozilla Firefox, Internet Explorer 6, and Safari. The recommended browsers are Firefox 3 and Internet Explorer 7. When using IE 6, you might experience display issues, such as partially obscured tables and buttons, and some buttons may not perform as expected. You might also experience minor display issues when using Safari.
For the browser you use, make sure that popup windows are allowed for the MIDM URL and that JavaScript is enabled. Additionally, if you are working with sensitive data, you might also want to disable the feature that automatically fills in field values as you type. These options are configured on the Options (Firefox) or Internet Options (Internet Explorer) window accessed from the Tools menu.