https://developer.chrome.com/docs/extensions/develop/migrate/mv2-deprecation-timeline

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Manifest V2 support timeline

Stay organized with collections Save and categorize content based on
your preferences.

Understand when Manifest V2 will stop working for extensions

Latest

October 9th 2024: an update on Manifest V2 phase-out.

Over the last few months, we have continued with the Manifest V2
phase-out. Currently the chrome://extensions page displays a warning
banner for all users of Manifest V2 extensions. Additionally, we have
started disabling Manifest V2 extensions on pre-stable channels.

We will now begin disabling installed extensions still using Manifest
V2 in Chrome stable. This change will be slowly rolled out over the
following weeks. Users will be directed to the Chrome Web Store,
where they will be recommended Manifest V3 alternatives for their
disabled extension. For a short time, users will still be able to
turn their Manifest V2 extensions back on. Enterprises using the
ExtensionManifestV2Availability policy will be exempt from any
browser changes until June 2025. See our May 2024 blog for more
context.

June 3rd 2024: the Manifest V2 phase-out begins.

Starting on June 3rd on the Chrome Beta, Dev and Canary channels, if
users still have Manifest V2 extensions installed, some will start to
see a warning banner when visiting their extension management page -
chrome://extensions - informing them that some (Manifest V2)
extensions they have installed will soon no longer be supported. At
the same time, extensions with the Featured badge that are still
using Manifest V2 will lose their badge.

Upcoming

June 2025: Chrome MV2 deprecation enterprise rollout

Enterprises using the ExtensionManifestV2Availability policy to
ensure the continued functioning of Manifest V2 extensions in their
organization will have one additional year - until June 2025 - to
migrate the Manifest V2 extensions in their organization. Browsers
with the policy enabled won't be impacted by the rollout of the
deprecation until that time.

Past

June 2022: Chrome Web Store - no new private extensions

Chrome Web Store stopped accepting new Manifest V2 extensions with
visibility set to "Private".

January 2022: Chrome Web Store - no new public / unlisted extensions

Chrome Web Store stopped accepting new Manifest V2 extensions with
visibility set to "Public" or "Unlisted". The ability to change
Manifest V2 extensions from "Private" to "Public" or "Unlisted" was
removed.

Except as otherwise noted, the content of this page is licensed under
the Creative Commons Attribution 4.0 License, and code samples are
licensed under the Apache 2.0 License. For details, see the Google
Developers Site Policies. Java is a registered trademark of Oracle
and/or its affiliates.

Last updated 2021-09-23 UTC.

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