switchTabSafari

driver.get("https://demoqa.com/browser-windows");

   // Open new child window within the main window
        driver.findElement(By.id("tabButton")).click();

        //Get handles of the windows
        String mainWindowHandle = driver.getWindowHandle();
        System.out.println("main" + mainWindowHandle);
        Set<String> allWindowHandles = driver.getWindowHandles();
        Iterator<String> iterator = allWindowHandles.iterator();

        // Here we will check if child window has other child windows and will fetch the heading of the child window
        while (iterator.hasNext()) {
            String ChildWindow = iterator.next();
            if (!mainWindowHandle.equalsIgnoreCase(ChildWindow)) {
                System.out.println("child" + ChildWindow);
                driver.switchTo().window(ChildWindow);
                WebElement text = driver.findElement(By.id("sampleHeading"));
                System.out.println("Heading of child window is " + text.getText());
                Thread.sleep(2000);
                driver.close();
            }
            driver.switchTo().window(mainWindowHandle);
        }
    }