Works for some sites, but not for others like YouTube. It gets confusing when there's more than 1 video on the same page because it doesn't tell you which is which and you have to take a guess, sometimes you mix up and have to manually check each downloaded video to see if the program got it right, often it didn't and you have to re-download the missing videos. Not very happy with this plugin, really. It's cumbersome and works half the time.