Visual Studio .Net 2005 Open using mozilla Firefox

This is how you could Using Firefox (and IE) to debug your apps in Visual Studio .Net 2005. 

1. Open Visual Studio .Net 2005
2. Click On File -> Browser With
3. If Firefox is not there then 
   Click on Add
   Browser to firefox D:\Program Files\Mozilla Firefox or C:\ What ever
   select firefox.exe
4. click on firefox.exe and click on "set as default" 

You are good to go