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/Web Extensions

extension.inIncognitoContext

Boolean value, true for content scripts running inside private browsing tabs and for extension pages running inside a private browsing process.

Syntax

let isPrivate = browser.extension.inIncognitoContext;  // true or false

Value

A boolean value indicate if the current script is running in a private tab or process.

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
inIncognitoContext
Yes
17
45
?
Yes
14
Always returns false.
?
?
48
?
?
?

Note: 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.

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https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/extension/inIncognitoContext