ActiveX control AMI DicomDir TreeView could not be loaded

[pipefighter]

I am not sure this is the right place to post this but here go's. I am trying to view a MRI File created with Centricity Dicom Viewer. When I open the file it opens Foxfire looking for explorer.exe. I have the program taged to open with explorer.exe. I trys to load then I get this error message "ActiveX control AMI DicomDir TreeView could not be loaded" I have tryed to find a way to download the latest ver. of Active X but have not been able to this point. Is this the problem or can you please tell me what this message means and how to overcome it. Thanks

[glc]

Firefox is not ActiveX capable. You are probably going to have to switch back to IE for your default browser.

[pipefighter]

Thank-You glc I know this is simple but how do you change default browsers.

[pipefighter]

I set IE as default and tried to open program got the same message
ActiveX control AMI DicomDir TreeView could not be loaded
any help would be apreciated. I have several utilities such as pctools that claim to fix all problems but so far nothing.

[pam123]

I'm not sure if this answers the question or not but scroll down till you get to the section about the ActiveX plugin for Firefox :

http://forums.mozillazine.org/viewtopic.php?t=206213

If it makes sense for you want it to do, I don't know a thing about MRI files, then go back and read the first part about windows media player so you'll know what they mean when they say that they will act together in Firefox.
Then, set a restore point before you start, and see if it's your answer.