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# didCloseTab(_:windowIsClosing:)

Should be called by the app when a tab is closed to fire appropriate events with all loaded web extensions.

```
@MainActor @preconcurrency func didCloseTab(_ closedTab: any WKWebExtensionTab, windowIsClosing: Bool = false)
```

## Parameters

`closedTab`

The tab that was closed.

`windowIsClosing`

A boolean value indicating whether the window containing the tab is also closing.

## Discussion

This method informs all loaded extensions of the closing of a tab, ensuring consistent 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.

## See Also

[`func didOpenTab(any WKWebExtensionTab)`](/documentation/WebKit/WKWebExtensionController/didOpenTab(_:))

Should be called by the app when a new tab is opened to fire appropriate events with all loaded web extensions.


---

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