There are also longstanding bugs that haven't been fixed.
In the Chromium Extensions developer forum, one concerned developer responded to the V2 sunset timeline by posting a list of what's said to be unresolved technical issues with V3. Hill argues, "having the matching algorithm set in stone in the browser will cripple innovations in content blockers." In other words, marketers will be able to alter their ad presentation to evade extension-based intervention but extensions will not be able to respond immediately.
#Ublock chrome extension update
One of his major concerns is that there's not yet a way to update filter lists with new blocking patterns without republishing the entire extension. The EFF makes an extension for blocking online tracking called Privacy Badger that relies on powerful Manifest V2 APIs like the blocking version of webRequest, which allows the interception and alteration of network data prior to its display in the browser. A month later, in July 2019, Alexei Miagkov, Jeremy Gillula, and Bennett Cyphers published an EFF blog post that challenged Google's claims about the security benefits of Manifest V3, calling it "a blunt instrument that will do little to improve security while severely limiting future innovation". "In fact, this change is meant to give developers a way to create safer and more performant ad blockers," wrote Simeon Vincent, developer advocate for Chrome Extensions, in a blog post at the time. However, the ad giant, faced with a backlash from developers and organizations like the EFF, attempted to quell discontent in June 2019 by insisting that its goal with Manifest V3 is not to kill ad blockers but to help developers create better ad blockers. Ad blocking made Google throw its toys out of the pram – and now even more control is being taken from us.More power to web apps, cries Google, and more privacy, too.What happens when a Chrome extension with 2m+ users changes hands, raises red flags, doesn't document updates? Let's find out.Firefox to adopt Chrome's new approach to extensions – sans the part that threatens ad blockers.With Google telling investors that ad blocking represented a potential threat to its revenue, many assumed the company had ulterior motives for developing Manifest V3 – the elimination of content/ad blocking and privacy extensions under the pretense of safety is something Google's publishing partners would clearly endorse. After that, other developers of popular content blocking and privacy extensions realized they would have to revise their extensions to fit Manifest v3 and perhaps rethink functionality that would no longer be available under the new regime. In early 2019, Raymond Hill, developer of the popular uBlock Origin content blocking extension, took note of the planned API change and warned that Manifest V3, as Google described it, would break uBlock Origin. The legacy extension spec, Manifest V2, provided powers that while useful to legitimate developers were also easily misused to create malware. The Chocolate Factory began work on Manifest V3, a revised set of APIs available to extension developers, in 2018 to address security and performance concerns.
"The reasons they have stated publicly don't fully make sense." Working on a fix "Our criticism still stands," said Alexei Miagkov, senior staff technologist at the Electronic Frontier Foundation, told The Register. Despite Google's insistence that this is a good thing, doubts about the renovation plan remain.
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