I tried that and it still stated I needed Safari. When I checked the system requirements this is what it said:
Macintosh:
Operating System: MAC OS X 10.4.2 or higher
Browser: Safari 2.0 or higher (Safari 3.x Beta is NOT supported) (JavaScript must be enabled)
512 MB RAM
16-bit sound card and speakers
65,000-color video display card
Internet connection: High Speed Broadband Connection at least 500kbps
Web browser (see above); cookies enabled
Minimum Screen Resolution 1024 x 768
Flip4Mac plug-in (by Telestream - free download): With Flip4Mac, you can play Windows Media files (.wma and .wmv) in QuickTime Player and view Windows Media content on the Internet using a web browser
Flip4Mac System Requirements:
QuickTime 6.5 or higher
The Flip4Mac plug-in may be downloaded at the following link:
http://www.microsoft.com/windows/windowsmedia/player/wmcomponents.mspx
Click on "Free Download" button and then click on the "Download" button.
We recommend that you review the Flip4Mac download and installation
instructions on the same page as the Download button before downloading.