version

Type String
Mandatory Yes
Example
"version": "0.1"

Version of the extension, formatted as numbers and ASCII characters separated by dots. For the details of the version format, see the Version format page.

You can inspect the add-ons linter code to see how extension versions for Firefox are validated.

Note that the syntax defined for Chrome's version is more restrictive than that used by Firefox:

  • values for version that are valid for Chrome will always be valid for Firefox
  • values for version that are valid for Firefox may not be valid for Chrome

To obtain your extension version in your JavaScript code, use:

console.log(browser.runtime.getManifest().version);

Example

If the manifest contains:

"version": "0.1"

To obtain your extension version in your JavaScript code, use:

console.log(browser.runtime.getManifest().version);
// expected output: "0.1"

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
version
Yes
Valid Chrome versions are a subset of valid Firefox versions.
14
48
?
Yes
14
?
?
48
?
?
?

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/version