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

Report problems with this compatibility data on GitHub
webextensions-desktopwebextensions-mobile
ChromeEdgeFirefoxOperaSafariFirefox for Android
manifest_version
Version 1
DeprecatedNon-standard
Version 2
Version 3
Experimental

Legend

Full support
Full support
No support
No support
Experimental. Expect behavior to change in the future.
Non-standard. Check cross-browser support before using.
Deprecated. Not for use in new websites.