interface _OnActivatedActiveInfo {
    previousTabId?: number;
    tabId: number;
    windowId: number;
}
Index
previousTabId? tabId windowId
previousTabId?: number

The ID of the tab that was previously active, if that tab is still open.

tabId: number

The ID of the tab that has become active.

windowId: number

The ID of the window the active tab changed inside of.