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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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So, I keep meaning to look into this but I come from the wrong background to have an intuitive grasp of the pieces at play here. My work is primarily in back end systems development for data driven models and I have very little understanding of how networking elements interact or even what they are, for the most part. If someone with that background is reading these comments and willing to take the time, would you be able to provide an explanation for the differences between Manifest V2/V3 and how V3 prevents ad blockers from working?
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!
The webRequest API allowed intercepting any network request in v2. Firefox also has an api for dns resolving. Lastly chrome now has a limited size for content blocking rules. All adding up to more limited blocking.