if Morfik convert my Pascal code to JavaScript code to work in the Client side like Firefox, no, it not the same idea, ASPX do the same, it is generate JS to work in the web browser.
Moonlight have and addon/plugin in Firefox like as Adobe Flash, it is run as like Flash run, with C# code not converted to JS.
Pascal can not rich this idea until they decided to make a Pascal Script and make a plugin to Firefox/IE/Opera like as the Adobe Flash.
As Laksen said "It's of course possible, but it would take many years. Probably around a decade"