| 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
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
| Desktop | Mobile | ||||
|---|---|---|---|---|---|
manifest_version | Chrome Full support 4 | Edge Full support 14 | Firefox Full support 48 | Opera Full support 15 | Firefox Android Full support 48 |
| Version 1 | Chrome No support 4 — 21 | Edge No support No | Firefox No support No | Opera No support No | Firefox Android No support No |
| Version 2 | Chrome Full support Yes | Edge Full support 14 | Firefox Full support 48 | Opera Full support Yes | Firefox Android Full support 48 |
| Version 3 | Chrome No support No | Edge No support No | Firefox No support No | Opera No support No | Firefox Android No support No |
Legend
- Full support
- Full support
- No support
- No support
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.
- Non-standard. Expect poor cross-browser support.
- Non-standard. Expect poor cross-browser support.
- Deprecated. Not for use in new websites.
- Deprecated. Not for use in new websites.