AutoPager is a widget (remember those?) which makes it that you don’t have to press Next at the bottom of the page, it makes everything one long page so you can keep on scrolling with having to wait for the next page to load. It is available on Firefox and Google Chrome. It works very good on Google and YouTube. There is a way to set it up so it will work on other sites, but you need to set up RULES. There are tutorials, but I don’t really chap them.