Error 400 Bad Request

Hi Guys,

I have created a page that allows an admin to add several images to a database using a DetailsView to input data and the GridView to view and edit the data.

The problem is when I try to test my application in Firefox, I get an "Error 400: Bad Request" error. However, testing the application in the other browsers like IE, Chrome, Safari and Opera works fine.

Can anyone help me with this?

Thanks
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