Does this message mean my extension is malware or dangerous?

No. This message indicates Manifest V2 deprecation, not a security issue. Many legitimate, well-maintained extensions show this message because they have not yet been updated to Manifest V3.

Can I prevent Chrome from disabling my extension?

No. Chrome controls which extension platforms are supported. Individual users cannot prevent MV2 deprecation. Enterprise administrators on managed devices may have policies to extend MV2 support.

What is the recommended way to find a replacement?

Check the Chrome Web Store for MV3 updates from the same developer. Search Extension Fixes for your extension name. Verify alternative developers and permissions before installing. Only install from official sources.

Is the developer official if they have a similar name or logo?

Not necessarily. Scammers sometimes create extensions with similar names to popular extensions. Always verify the developer name, reviews, permissions, and install count before installing any extension.

Is it safe to download CRX files from download sites to keep using the old extension?

No. Downloading CRX files from unofficial sites is risky. These files may contain malware, outdated security patches, or modified functionality. Only install extensions from the official Chrome Web Store.

What if there is no MV3 alternative for my extension?

If no MV3 alternative exists, you may need to use browser-native features, consider alternative browsers that still support MV2 (like Firefox), or adjust your workflow. Some extensions may have community-maintained forks.

Extension Fixes

Fix "This Extension May Soon No Longer Be Supported" in Chrome

Quick Answer

Chrome shows this message when an extension uses Manifest V2, which Chrome is phasing out. You cannot prevent this change, but you can prepare by exporting settings, checking for MV3 updates, and finding alternatives. This message appears before the extension stops working, giving you time to transition.

Find Extension Alternatives Browse All Guides

Common Extensions Affected by MV2 Deprecation

Extension	Type	Status	Recommended Path
SwitchyOmega	Proxy Manager	Affected	ZeroOmega (MV3 fork)
uBlock Origin	Ad Blocker	Affected	uBlock Origin Lite (MV3)
The Great Suspender	Tab Manager	Removed	Chrome Memory Saver
Various others	Various	Check individually	Search Extension Fixes

What This Chrome Message Means

This message indicates that the extension uses Manifest V2, an older Chrome extension platform that Google is phasing out. Chrome 138 has disabled MV2 by default. The message is a warning that the extension may stop working in future updates or may already be disabled.

Why You Are Seeing This Message

The extension was built for Manifest V2 and has not been updated to Manifest V3
Chrome is progressively disabling MV2 extensions with each release
The developer has not released an MV3-compatible version
The extension will eventually stop working unless updated by the developer

What You Can Safely Do Now

Export extension settings if the option is available
Check the Chrome Web Store for an updated MV3 version
Search Extension Fixes for your extension name and alternatives
Look for official announcements from the extension developer
Note the extension permissions to verify alternatives later
Test potential alternatives while your current setup still works

What Not to Do

Do not install random CRX files from unknown download sites.
Do not assume a similar name means it is official.
Do not grant broad permissions without checking the developer.
Export settings before removing old extensions if you still need the configuration.

Best Options at a Glance

Check first:Official Chrome Web Store for MV3 updates

Search:Extension Fixes for known alternatives

Export:Settings before removing the old extension

Frequently Asked Questions

Sources

Chrome Manifest V2 Deprecation Timeline
Google Chrome Developers·developer.chrome.com
Chrome Web Store Extension Listings
Chrome Web Store·chromewebstore.google.com
Extension Fixes Search Tool
Extension Fixes·extensionfixes.com

This Extension No Longer Supported Manifest V2 Disabled Guide Try Extension Search

Last updated: May 2026

Common Extensions Affected by MV2 Deprecation

What This Chrome Message Means

Why You Are Seeing This Message

What You Can Safely Do Now

What Not to Do

Best Options at a Glance

Frequently Asked Questions

Frequently Asked Questions

Sources

Related Pages