How to Enable Manifest V2 extensions for another year (until June 2025)

[genzj]

Step 1. Enable the Policy

Check [chrome://policy/] for the existence of ExtensionManifestV2Availability and its value should be 2. Or use following command to set it.

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Windows

Import following registry file:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome]
"ExtensionManifestV2Availability"=dword:00000002

MacOS

Chrome

defaults write com.google.Chrome.plist ExtensionManifestV2Availability -int 2

Chrome Beta

defaults write com.google.Chrome.beta.plist ExtensionManifestV2Availability -int 2

Brave

defaults write com.brave.Browser.plist ExtensionManifestV2Availability -int 2

Brave Beta

defaults write com.brave.Browser.beta.plist ExtensionManifestV2Availability -int 2

Arc

defaults write company.thebrowser.Browser ExtensionManifestV2Availability -int 2

Step 2. Set the flags

1. Go to [chrome://flags/]
2. Search for mv2
3. Set to Enabled: "Allow legacy extension manifest versions"
4. Set to Disabled: the 3 remaining ones, all named "Extension Manifest V2 Deprecation ... Stage"

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