If you’re nerdy enough to care, here’s the code to install a new search plugin…

// Firefox plugin installer code

function addEngine(name,ext)
{
if ((typeof window.sidebar == "object") && (typeof
window.sidebar.addSearchEngine == "function"))
{
window.sidebar.addSearchEngine(
"http://www.example.com/searching/"+name+".src",
"http://www.example.com/searching/"+name+"."+ext,
name,
"" );
}
else
{
errorMsg(name,ext,"");
}
}