To improve readability, cosmetic filtering removes those leftover spaces and condenses the website just before it finishes loading.Īll browser extensions include a blueprint file called Manifest to tell the browser key information, like the permissions required. After blocking the request to the ad server, websites still contain blank space where ads would normally be.
See our guide on malicious websites and malvertising to learn how to spot them and protect yourself.Īdditionally, most ad blockers have a feature called cosmetic filtering. If you visit a legitimate website that has been infected with malware, your content blocker can allow the legitimate website to load while blocking the connection to the infection before it can harm your device. Ad blockers and other content blockers work by maintaining a list of requests to block before they load.
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