openTabs
A set of open tabs in all open windows that are exposed to this extension.
Declaration
var openTabs: Set<AnyHashable> { get }Discussion
Provides a set of tabs in all open windows that are visible to the extension, as updated by the didOpenTab(_:) and didCloseTab:windowIsClosing: methods.
Initially populated by the tabs in the windows returned by the extension controller delegate method webExtensionController(_:openWindowsFor:).