Browser Compatibilty forOffice SharePoint Server

The newer version of sharepoint , MOSS 2007 has better cross browser compatibility than the older version .It supports the following browswer :

Windows
Firefox 1.5+
Netscape 8.1+
Mozilla 1.7+

Macintosh
Safari 2.0+
Firefox 1.5+

Unix/Linux
Firefox 1.5+
Netscape 7.2+

Check out the following article to completely understand the browser compatibility:
http://technet.microsoft.com/en-us/library/cc263526.aspx