Outlook Web App (OWA) [formerly known as Outlook Web Access] lets you access your email through a web browser & secured logon. OWA looks and works similar to the "native" Outlook 2007 and Outlook 2010 software loaded on your work computer. All major Outlook functions are accessible in OWA: Inbox, Folders, Calendar, Contacts, Global Address List, and Tasks.
Winnefox now has an upgraded version of OWA that closely matches current Outlook functionality on all major web browsers. You'll get the same OWA experience using Firefox 3+, Chrome 3+, Internet Explorer 7+, and Safari 3+.