Arc
```
defaults write company.thebrowser.Browser.plist ExtensionManifestV2Availability -int 2
```
Chrome
```
defaults write com.google.Chrome.plist ExtensionManifestV2Availability -int 2
```
Chrome Beta
```
defaults write com.google.Chrome.beta.plist ExtensionManifestV2Availability -int 2
```
Chrome Dev
```
defaults write com.google.Chrome.dev.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
```
Edge
```
defaults write com.microsoft.Edge.plist ExtensionManifestV2Availability -int 2
```
Edge Beta
```
defaults write com.microsoft.Edge.Beta.plist ExtensionManifestV2Availability -int 2
```
Vivaldi
```
defaults write com.vivaldi.Vivaldi.plist ExtensionManifestV2Availability -int 2
```