The type of extension view.


Values of this type are strings. Possible values are: "tab", "popup", "sidebar".

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxOperaSafariFirefox for Android
ViewTypeChrome Full support YesEdge Full support 79Firefox Full support 45Opera Full support YesSafari Full support 14Firefox Android Full support 48
sidebarChrome No support NoEdge No support NoFirefox Full support 54Opera No support NoSafari No support NoFirefox Android No support No


Full support  
Full support
No support  
No support

This API is based on Chromium's chrome.extension API. This documentation is derived from extension.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.