"There is no arguing that YouTube is the most popular video sharing site out there, but that isn’t to say that there aren’t things about it that annoy users. With that said, there are a wide array of plugins for Firefox to make the YouTube user experience that much better. Here are over 20 that will let you save your favorite videos before they disappear, stop them from autoplaying when you come to a page, and more."
20+ Firefox Plugins to Enhance Your YouTube Experience
20+ Firefox Plugins to Enhance Your YouTube Experience: