This will download all played maps of a user. Make sure, that you are on a user-page, as this script will not work elsewhere.
This Script works, by opening the beatmaps (either with osu direct, or via download) in a new browser window. The Browser will detect this, and "Block Pop-ups". Please make sure to disable the Popup Blocker.
If you are unsure, if the Popup-blocker is active, or not, execute this script.