Smart autofill extension for shopping e-commerce webpages. Accessing a new site that you've never accessed before? Is your current autofill requiring too much effort or too much time to use, especially when trying to buy items where speed is key? With Resell.on Smartfill, our extension will pre-fill out fields with your saved information without touching a button, and for sites that you may not have even ever accessed before with smart HTML field detection technologies before the webpage even finishes loading.