---
title: NSExtension
framework: bundleresources
role: symbol
role_heading: Property List Key
path: bundleresources/information-property-list/nsextension
---

# NSExtension

The properties of an app extension.

## Topics

### Appearance and Presentation

- [NSExtensionActionWantsFullScreenPresentation](bundleresources/information-property-list/nsextension/nsextensionactionwantsfullscreenpresentation.md)
- [NSExtensionMainStoryboard](bundleresources/information-property-list/nsextension/nsextensionmainstoryboard.md)
- [NSExtensionOverridesHostUIAppearance](bundleresources/information-property-list/nsextension/nsextensionoverrideshostuiappearance.md)
- [NSExtensionPointIdentifier](bundleresources/information-property-list/nsextension/nsextensionpointidentifier.md)
- [NSExtensionPrincipalClass](bundleresources/information-property-list/nsextension/nsextensionprincipalclass.md)

### Attributes

- [NSExtensionAttributes](bundleresources/information-property-list/nsextension/nsextensionattributes.md)

### Authentication

- [ASAccountAuthenticationModificationPasswordGenerationRequirements](bundleresources/information-property-list/nsextension/asaccountauthenticationmodificationpasswordgenerationrequirements.md)
- [ASAccountAuthenticationModificationSupportsStrongPasswordChange](bundleresources/information-property-list/nsextension/asaccountauthenticationmodificationsupportsstrongpasswordchange.md)
- [ASAccountAuthenticationModificationSupportsUpgradeToSignInWithApple](bundleresources/information-property-list/nsextension/asaccountauthenticationmodificationsupportsupgradetosigninwithapple.md)

### File Provider

- [NSExtensionFileProviderActions](bundleresources/information-property-list/nsextension/nsextensionfileprovideractions.md)
- [NSExtensionFileProviderDocumentGroup](bundleresources/information-property-list/nsextension/nsextensionfileproviderdocumentgroup.md)
- [NSExtensionFileProviderSupportsEnumeration](bundleresources/information-property-list/nsextension/nsextensionfileprovidersupportsenumeration.md)
- [NSExtensionFileProviderDownloadPipelineDepth](bundleresources/information-property-list/nsextension/nsextensionfileproviderdownloadpipelinedepth.md)
- [NSExtensionFileProviderUploadPipelineDepth](bundleresources/information-property-list/nsextension/nsextensionfileprovideruploadpipelinedepth.md)

### Intents

- [IntentsSupported](bundleresources/information-property-list/nsextension/intentssupported.md)

### Professional Video Applications

- [ProExtensionAttributes](bundleresources/information-property-list/nsextension/proextensionattributes.md)
- [ProExtensionPrincipalClass](bundleresources/information-property-list/nsextension/proextensionprincipalclass.md)
- [ProExtensionPrincipalViewControllerClass](bundleresources/information-property-list/nsextension/proextensionprincipalviewcontrollerclass.md)
- [ProExtensionUUID](bundleresources/information-property-list/nsextension/proextensionuuid.md)

### SafariServices

- [SFSafariContentScript](bundleresources/information-property-list/nsextension/sfsafaricontentscript.md)
- [SFSafariContextMenu](bundleresources/information-property-list/nsextension/sfsafaricontextmenu.md)
- [SFSafariStyleSheet](bundleresources/information-property-list/nsextension/sfsafaristylesheet.md)
- [SFSafariToolbarItem](bundleresources/information-property-list/nsextension/sfsafaritoolbaritem.md)
- [SFSafariWebsiteAccess](bundleresources/information-property-list/nsextension/sfsafariwebsiteaccess.md)

## See Also

### Extensions and services

- [NSServices](bundleresources/information-property-list/nsservices.md)
- [WKExtensionDelegateClassName](bundleresources/information-property-list/wkextensiondelegateclassname.md)
- [UIApplicationShortcutWidget](bundleresources/information-property-list/uiapplicationshortcutwidget.md)