We are planning to raise these values but we won’t have updated numbers until we can run performance tests to find a good upper bound that will work across all supported devices. In the response, Google claims that they’re looking to increase this number, depending on performance tests, but couldn’t commit to anything specific. One of the original concerns of switching to this system was the fact that Chrome currently imposes a limit of 30,000 rules, while popular ad blocking rules lists like EasyList use upwards of 75,000 rules. This is likely to allow enterprise customers to develop in-house Chrome extensions, not for ad blocking usage.įor the rest of us, Google hasn’t budged on their changes to content blockers, meaning that ad blockers will need to switch to a less effective, rules-based system, called “declarativeNetRequest.” Google is essentially saying that Chrome will still have the capability to block unwanted content, but this will be restricted to only paid, enterprise users of Chrome.
The most notable aspect of their response, however, is a single sentence buried in the text, clarifying their changes to ad blocking and privacy blocking extensions.Ĭhrome is deprecating the blocking capabilities of the webRequest API in Manifest V3, not the entire webRequest API (though blocking will still be available to enterprise deployments).
Now, months later, Google has responded to some of the various issues raised by the community, sharing more details on the changes to permissions and more. As you would expect, power users and extension developers alike criticized Google’s proposal for limiting the user’s ability to browse the web as they see fit. With the Manifest V3 proposal, Google deprecates the webRequest API’s ability to block a particular request before it’s loaded. In particular, modern ad blockers, like uBlock Origin and Ghostery, use Chrome’s webRequest API to block ads before they’re even downloaded. Manifest V3 comprises a major change to Chrome’s extensions system, including a revamp to the permissions system and a fundamental change to the way ad blockers operate. In a response to the overwhelming negative feedback, Google is standing firm on Chrome’s ad blocking changes, sharing that current ad blocking capabilities will be restricted to enterprise users. Back in January, Google announced a proposed change to Chrome’s extensions system, called Manifest V3, that would stop current ad blockers from working efficiently.
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