W3cubDocs

/Web Extensions

manifest_version

Type Number
Mandatory Yes
Example
"manifest_version": 2

This key specifies the version of manifest.json used by this extension.

Currently, this must always be 2.

Example

"manifest_version": 2

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
manifest_version
4
14
48
?
15
14
?
?
48
?
?
?
v1
4-21
No
No
?
No
No
?
?
No
?
?
?
v2
Yes
14
48
?
Yes
14
?
?
48
?
?
?
v3
88
No
No
?
No
No
?
?
No
?
?
?

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https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/manifest_version