What Firebug is for the client, Glimpse does for the server... in other words, a client side Glimpse into what's going on in your ASP.NET server.
Glimpse allows you to debug your ASP.NET web site or web service right in the browser. Glimpse allows you to "Glimpse" into what's going on in your web server. In other words what Firebug is to debugging your client side code, Glimpse is to debugging your server within the client.
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