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# WKWebExtensionContext

An object that represents the runtime environment for a web extension.

```
@MainActor class WKWebExtensionContext
```

## Overview

This class provides methods for managing the extension’s permissions, allowing it to inject content, run background logic, show popovers, and display other web-based UI to the user.

## Topics

### Variables

[`deniedPermissionMatchPatternsWereRemovedNotification`](/documentation/WebKit/WKWebExtensionContext/deniedPermissionMatchPatternsWereRemovedNotification)

A notification the system sends whenever a web extension context has newly removed denied permission match patterns.

[`deniedPermissionsWereRemovedNotification`](/documentation/WebKit/WKWebExtensionContext/deniedPermissionsWereRemovedNotification)

A notification the system sends whenever a web extension context has newly removed denied permissions.

[`errorDomain`](/documentation/WebKit/WKWebExtensionContext/errorDomain)

[`errorsDidUpdateNotification`](/documentation/WebKit/WKWebExtensionContext/errorsDidUpdateNotification)

This notification is sent whenever a web extension context has new errors or errors were cleared.

[`grantedPermissionMatchPatternsWereRemovedNotification`](/documentation/WebKit/WKWebExtensionContext/grantedPermissionMatchPatternsWereRemovedNotification)

This notification is sent whenever a web extension context has newly removed granted permission match patterns.

[`grantedPermissionsWereRemovedNotification`](/documentation/WebKit/WKWebExtensionContext/grantedPermissionsWereRemovedNotification)

This notification is sent whenever a web extension context has newly removed granted permissions.

[`permissionMatchPatternsWereDeniedNotification`](/documentation/WebKit/WKWebExtensionContext/permissionMatchPatternsWereDeniedNotification)

This notification is sent whenever a web extension context has newly denied permission match patterns.

[`permissionMatchPatternsWereGrantedNotification`](/documentation/WebKit/WKWebExtensionContext/permissionMatchPatternsWereGrantedNotification)

This notification is sent whenever a web extension context has newly granted permission match patterns.

[`permissionsWereDeniedNotification`](/documentation/WebKit/WKWebExtensionContext/permissionsWereDeniedNotification)

This notification is sent whenever a web extension context has newly denied permissions.

[`permissionsWereGrantedNotification`](/documentation/WebKit/WKWebExtensionContext/permissionsWereGrantedNotification)

This notification is sent whenever a web extension context has newly granted permissions.

### Type Aliases

[`WKWebExtensionContext.NotificationUserInfoKey`](/documentation/WebKit/WKWebExtensionContext/NotificationUserInfoKey)

Constants for specifying web extension context information in notifications.

### Enumerations

[`WKWebExtensionContext.Error.Code`](/documentation/WebKit/WKWebExtensionContext/Error/Code)

Constants that indicate errors in the [`WKWebExtensionContext`](/documentation/WebKit/WKWebExtensionContext) domain.

[`WKWebExtensionContext.PermissionStatus`](/documentation/WebKit/WKWebExtensionContext/PermissionStatus)

Constants used to indicate permission status in web extension context.

### Enumerations

[`WKWebExtensionContext.PermissionStatus`](/documentation/WebKit/WKWebExtensionContext/PermissionStatus)

Constants used to indicate permission status in web extension context.

### Structures

[`WKWebExtensionContext.Error`](/documentation/WebKit/WKWebExtensionContext/Error)

Constants used to indicate errors in the web extension context domain.

[`WKWebExtensionContext.NotificationUserInfoKey`](/documentation/WebKit/WKWebExtensionContext/NotificationUserInfoKey)

Constants for specifying web extension context information in notifications.


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