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Google to push ahead with Chrome's ad-blocker extension overhaul in earnest
(www.theregister.com)
this post was submitted on 01 Jun 2024
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With manifest v2, extensions could block the content however they wanted, reading and modifying DOM as they see fit.
Google claims that it is a security risk, so with manifest v3, extensions can only create and give the browser rules and the browser itself will block content based on them. The rules have a limit in size and capabilities.
If that was still not clear, try thinking of unrestricted SQL access vs a UI for modifying a database.
Got it, that makes sense. Thanks for taking the time to write this up!