When I started using Bing, there was a link just below the Firefox search bar which said Add Bing to Search Box and when I clicked it, it asked me for a confirmation and also if I wanted to use it right away. How is this functionality achieved? I don't want users of my site to go discover it from the highlighted searchbox and say "add blah search". A structured approach like that of bing makes it much easier. How do I implement it?
Can this property be altered using Window.external options?
window.external.IsSearchProviderInstalled(url);