Why am I receiving ActiveX errors when attempting to view certain Web pages?
Some Web pages may have ActiveX controls that have been built for the Win32 platform and don’t support Mac OS. If this happens and you are unable to view the page, you can turn off the viewing of ActiveX content. To do so, choose Preferences from the Edit menu, click Web Content under Web Browser, and then clear the Enable ActiveX check box. If this fixes your problem, the ActiveX control most likely did not support Mac OS.