AdGuard Blog: Chrome Manifest V3 is looming over us. Where do we stand?


Level 78
Thread author
Honorary Member
Top Poster
Content Creator
Apr 24, 2016
Over four years ago, in early 2019, the Google Chrome team announced ground-shaking changes to the browser extensions platform, known as “Manifest V3.”

We’ve repeatedly discussed the potential problems these changes might cause:
Initially, Manifest V3 was met with significant negativity by nearly everyone, from the developer community (not just ad blockers developers) to users who were fearful of the consequences of implementing a more restrictive and, frankly, raw and buggy platform.

Fortunately, the Chrome team paused the implementation of Manifest V3 until all major bugs and developer concerns are addressed. If you follow the link above, you’ll see that this moment is almost upon us. By the release of Chrome 120, all major issues are expected to be resolved, which means the integration of Manifest V3 is drawing nearer, and it’s time to discuss the current state of affairs.

Over the past few years, I have frequently been asked how Manifest V3 will affect browser extensions. I will try to structure this post as a list of answers to the most common questions on this topic.


Level 82
Top Poster
Mar 29, 2018
What do I do?
You wait until MV3 rolls out and then choose between µBO Lite or Adguard MV3. Ghostery will also have an MV3 version and supposedly Privacy Badger will too, but I've seen no reports of the latter's development. You can also supplement a browser extension with a configurable DNS service like NextDNS.


Level 4
May 29, 2023
Example of a Windows policy for Chrome/Chromium (.reg file):

Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Chromium] "ExtensionManifestV2Availability"=dword:00000002 [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome] "ExtensionManifestV2Availability"=dword:00000002
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