Google Chrome’s next update will mark the end of popular ad blockers

Google Chrome 的下一次更新将标志着主流广告拦截器的终结

Google Chrome’s move to Manifest V3 for extensions is closing its final loophole and, with it, bringing the end of many ad blocker tools. The move to Manifest V3 has been in the works for years at this point, with one of the main points of criticism from users being that the change would break most ad blockers due to the new permissions structure and Google’s focus on privacy. The impacts of that were felt broadly in 2024 and, now, Google is closing the book on Manifest V2 and, in turn, popular ad blockers such as uBlock Origin.

Google Chrome 向 Manifest V3 扩展标准的迁移正在封堵最后一个漏洞，这也意味着许多广告拦截工具即将走向终结。向 Manifest V3 的过渡已经筹备多年，用户的主要批评点在于，由于新的权限结构以及 Google 对隐私的侧重，这一变更将导致大多数广告拦截器失效。2024 年，这一影响已广泛显现；而现在，Google 正在彻底终结 Manifest V2，这也意味着 uBlock Origin 等主流广告拦截器将无法继续使用。

CyberNews points out a Chromium commit that removes support for the “kExtensionManifestV2Disabled” flag, which is referred to as “dead code” seeing as Chrome no longer supports Manifest V2 extensions. This removal acts as the final stop for many Manifest V2-based ad blocker extensions that were still in use today – the flag was effectively a loophole to continue using these extensions.

CyberNews 指出，Chromium 的一项代码提交移除了对 “kExtensionManifestV2Disabled” 标志的支持。由于 Chrome 已不再支持 Manifest V2 扩展，该标志被视为“死代码”。此次移除标志意味着许多目前仍在使用的基于 Manifest V2 的广告拦截扩展将彻底失效——该标志此前实际上是继续使用这些扩展的一个漏洞。

A Googler on the commit explains: MV2 extensions are no longer allowed in any supported version of Chrome, and we are removing support for them and the associated functionality. We won’t be able to provide / maintain this functionality indefinitely due to the complexity and tech debt, as well as the security risks it entails (we’ve actually found a number of bugs that are specific to MV2 lately). Of course, other browsers can continue supporting these if they so desire.

一位 Google 员工在代码提交中解释道：“在任何受支持的 Chrome 版本中，MV2 扩展已不再被允许，我们正在移除对它们及相关功能的支持。由于复杂性、技术债务以及由此带来的安全风险（我们最近确实发现了许多 MV2 特有的漏洞），我们无法无限期地提供/维护此功能。当然，其他浏览器如果愿意，可以继续支持这些扩展。”

This will also impact other Chromium-based browsers, though the comment notes that “other browsers can continue supporting these if they so desire.” Neowin points out that Microsoft Edge and Opera are likely to follow suit.

这也将影响其他基于 Chromium 的浏览器，尽管上述评论指出“其他浏览器如果愿意，可以继续支持这些扩展”。Neowin 指出，Microsoft Edge 和 Opera 很可能会效仿这一做法。

Chrome 150, set to be released later this month, will remove this flag, while other leftover bits of Manifest V2 will be removed in the v151 release as AllAboutCookies details:

Chrome 150 计划于本月晚些时候发布，届时将移除该标志；而据 AllAboutCookies 详细说明，Manifest V2 的其他残留部分将在 v151 版本中被移除：

• Chrome 150 (expected June 30, 2026): Removes the primary technical workaround power users had kept in their toolkit (ExtensionManifestV2Disabled). A limited DevTools method persists, but it requires manually patching page elements each session and isn’t practical for daily use.

• Chrome 150（预计 2026 年 6 月 30 日）： 移除了高级用户工具箱中主要的变通技术手段（ExtensionManifestV2Disabled）。虽然仍保留了一种有限的开发者工具（DevTools）方法，但它需要每次会话手动修补页面元素，对于日常使用来说并不切实际。

• Chrome 151 (expected July 2026): Will remove the remaining flags (ExtensionManifestV2Unsupported, ExtensionManifestV2Availability, and AllowLegacyMV2Extensions).

• Chrome 151（预计 2026 年 7 月）： 将移除剩余的标志（ExtensionManifestV2Unsupported、ExtensionManifestV2Availability 和 AllowLegacyMV2Extensions）。

The W3C WebExtensions Community Group documented the Chrome 150 removal on May 20, 2026, citing a Chromium code review in which a Google engineer confirmed: “MV2 extensions are no longer allowed in any supported version of Chrome, and we are removing support for them.” PiunikaWeb reported the Chrome 151 flag removals on June 8; PCWorld confirmed the timeline a day later.

W3C WebExtensions 社区组于 2026 年 5 月 20 日记录了 Chrome 150 的移除计划，并引用了一项 Chromium 代码审查，其中一位 Google 工程师确认：“在任何受支持的 Chrome 版本中，MV2 扩展已不再被允许，我们正在移除对它们的支持。” PiunikaWeb 于 6 月 8 日报道了 Chrome 151 的标志移除计划；PCWorld 在一天后确认了该时间表。