If you're trying to view a web page and Firefox unexpectedly asks you what you want to do with an .aspx file, it means the server hosting the web site is not properly configured. Only the owners of the web site can fix it.

To double-check if that's indeed the case, please post a link to the page in question.

Below is a random example of an .aspx file that loads normally, because the server is properly configured.

• http://msdn.microsoft.com/library/default.aspx

I am trying to download a document that has .aspx file extension. Not view a web page

.aspx files are web pages.

• http://en.wikipedia.org/wiki/ASP.NET#Pages

Please post the problematic link so we might take a shot at determining the problem.

This page provides a more complete explanation.
http://pcsupport.about.com/od/fileextensions/f/aspxfile.htm

I suspect that file may not have the correct file extension, if it was "sent" to you. Typically .aspx files are meant to be displayed directly in the web browser, with the help of the server those files are delivered from - not saved on your local computer to be displayed at a later time without no direct connection the the "serving" web server.

Typically, when sending a file to a user it makes more sense to use the PDF file format or send the content as an image file.

Thank you. That is the answer. Solved!

I was able to open an ASPX file using the SAFARI browser (with apologies to Mozilla guys) with no problem.

That worked, thanks. Stupid Atlantic Elec