How to change the default browser to debug with in Visual Studio 2008?

• (In the Project Solution window) Right click a page (.aspx, or on a folder)
• Select Browse With...
• Choose your browser
• Click Set as Default
• Click Browse

ASP.NET projects:

• Right click a webpage (.aspx, or on a folder)
• Select Browse With...
• Choose your browser
• Click Set as Default
• Click Browse

ASP.NET MVC 1 projects:

Right click Default.aspx, then follow steps above.

ASP.NET MVC 2 projects:

As there is no Default.aspx, you need to create a Web Form (right-click project > Add > New Item) and follow the steps above.

If you use ASP-NET MVC, you need to right-click on Default.ASPX which will have a Browse With menu.