<!--
{
  "availability" : [
    "macOS: 10.12.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "SafariServices",
  "identifier" : "/documentation/SafariServices/SFSafariExtensionHandler",
  "metadataVersion" : "0.1.0",
  "role" : "Class",
  "symbol" : {
    "kind" : "Class",
    "modules" : [
      "Safari Services"
    ],
    "preciseIdentifier" : "c:objc(cs)SFSafariExtensionHandler"
  },
  "title" : "SFSafariExtensionHandler"
}
-->

# SFSafariExtensionHandler

A base class that you subclass to handle events in your Safari app extension.

```
class SFSafariExtensionHandler
```

## Relationships

### Conforms To

[`Equatable`](/documentation/Swift/Equatable)

[`Hashable`](/documentation/Swift/Hashable)

[`CVarArg`](/documentation/Swift/CVarArg)

[`NSExtensionRequestHandling`](/documentation/Foundation/NSExtensionRequestHandling)

[`SFSafariExtensionHandling`](/documentation/SafariServices/SFSafariExtensionHandling)

[`CustomDebugStringConvertible`](/documentation/Swift/CustomDebugStringConvertible)

[`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible)

[`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol)

### Inherits From

[`NSObject-swift.class`](/documentation/ObjectiveC/NSObject-swift.class)

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)