Mozilla Errors with download .mdl's

For a map I'm making I need some new skins, and in browsing the skin archive I found several I like, yet I can't download them. All I get is a page of text. I use mozilla.

My question is for any of you that have mozilla(or not), how do you fix this?

I use mozzila based opera and occasionally have the same problem. Right click the link, select save target as and in the box below the file set that to "All files" and then for the file name add a .mdl to the end.
It may not work for you, but it does work for me

You can also wait for the page to download, then go file --> save page as..., choose All Files, and save it like any other file.

This could be a problem with the MIME type of the mdl file, file a bug report to mozilla:D