This is a GREAT add-on. My best go-to resource to download things off the web that won't let me do so directly.

They have done a great job over the years improving their add-on, adding features, maintaining compatibility with sites as best as possible, and overall they are THE go-to app for downloading things off the web.

Yes, sometimes things like YouTube or other sites will update their security preventing this from working for a while, but it doesn't take them long to add an update to fix it. It's how this type of thing works - a website alters how content is accessed, and people like the developers of this app have to continuously find ways around it. They truly do an amazing job, by far the best free downloader app available.