You can run m-Fin reports using either Microsoft Internet Explorer (MSIE) or Firefox.
Firefox: You can run m-Fin reports using Firefox. I tried this myself and encountered a problem with the MSExcel output. I expect this will be fixed in Cognos 10, an upgrade which we are actively pursuing now. CSV output worked fine and so did html and pdf.
Safari: I have not tested Safari on Mac because Cognos explicitly states they do not support it. I actually did try running Safari on a Windows machine and found that drill links did not work. It’s ok with me if you want to try Safari understanding that if something seems broken, our support people will ask you to try Firefox.