As others have said, this add-on is just a bookmark to the developer's page. if you try to do anything with this extension that other extensions can't do, like download private videos—which is its main selling point—it just tells you to paste the link into the website. every time you open a new session it pops up the website, which is annoying enough to make me uninstall and just bookmark the website. the website itself does what it says it does, but the extension adds no functionality of value.