What's the name of the "Download Video" button program

In the lower right corner of the desktop on the Grauda KDE Gaming edition there's a button labeled "DOWNLOAD VIDEO" that somehow detects all of the videos open in browsers or running on the desktop and makes them available for download.
What is the name of that program. I looked through the installed packages and couldn't find any that seemed like they were it. Can someone please tell me the name of this wonderful package?

Xtreme download manager (XDM)


Thank you!

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mozilla has blocked this extension it seems.