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The description page should very clearly state that a user's browsing data will be sent to popupblockerscript.com. Instead, it has that information buried in a link to https://popupblockerscript.com/privacy/.
This page claims the script to be under the MIT license, however if you follow the link in the description to popupblockerscript.com/terms, you'll see that it is actually an extremely strict proprietary license which has all rights reserved.
One of the two is wrong and needs to be fixed.
If it is proprietary software, does it even belong on this site?