The native client architecture. This may be different from arch on some platforms.


Values of this type are strings. Possible values are: "arm", "x86-32", "x86-64".

Browser compatibility

Feature Chrome Edge Firefox (Gecko) Opera
Basic support (Yes) ? 45.0 (45.0) 33
Feature Edge Firefox OS Firefox Mobile (Gecko)
Basic support No support No support No support

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: wbamberg
 Last updated by: wbamberg,