We're looking for a person or people to help audit MDN to find places we could speed up. Is this you or someone you know? Check out the RFP: https://mzl.la/2IHcMiE



An object containing information about the current platform.


Values of this type are objects, which contain the following properties:

runtime.PlatformOs. The platform's operating system.
runtime.PlatformArch. The platform's processor architecture.
runtime.PlatformNaclArch. The native client architecture. This may be different from arch on some platforms.

Browser compatibility

ChromeEdgeFirefoxFirefox for AndroidOpera
Basic support Yes No4548 Yes
nacl_arch Yes No No No Yes


This API is based on Chromium's chrome.runtime API. This documentation is derived from runtime.json in the Chromium code.

Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.

Document Tags and Contributors

 Contributors to this page: chrisdavidmills, wbamberg
 Last updated by: chrisdavidmills,