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Blocks all ads on the current webpage in an undetectable way
In this version of the script, the run-at directive is set to document-start, which means that the script will start running as soon as the DOM is created, before any ads have a chance to load. Additionally, instead of removing the IFRAME elements, the script sets the display and visibility styles to "none" and "hidden", respectively. This makes the ads invisible to the user, but they still exist in the DOM, making it harder for websites to detect the presence of the script.
Please note that while this script makes it harder for websites to detect the presence of the script, it is not 100% foolproof and some websites may still be able to detect it.