---
title: "didChangeTabProperties(_:for:)"
framework: webkit
role: symbol
role_heading: Instance Method
path: "webkit/wkwebextensioncontroller/didchangetabproperties(_:for:)"
---

# didChangeTabProperties(_:for:)

Should be called by the app when the properties of a tab are changed to fire appropriate events with all loaded web extensions.

## Declaration

```swift
func didChangeTabProperties(_ properties: WKWebExtension.TabChangedProperties, for changedTab: any WKWebExtensionTab)
```

## Parameters

- `properties`: The properties of the tab that were changed.
- `changedTab`: The tab whose properties were changed.

## Discussion

Discussion This method informs all loaded extensions of changes to tab properties, ensuring a unified understanding across extensions. If the intention is to inform only a specific extension, you should use the respective method on that extension’s context instead.