Throttle Your ASP.NET Connection Speed 03 June 2009 (1) As a tool to test responsiveness on slow connections Firefox Throttle is handy Firefox add-in. There is also an IE version. You can add a localhost throttle if you are using Visual Studios local web server. For example, setting the download speed to 56K dialup, you can check any Silverlight media buffering UI animations are working as expected. SHARE: