Hey there! It’s super common for social login flows to behave differently even on the same site—let’s figure out why your Google login isn’t cooperating, even though Facebook works perfectly. Here are the most likely culprits and fixes tailored to your setup:

1. Google Login Might Use an Iframe (Not a New Window) #

Your Facebook code works because it triggers a new browser window (so switching via window handles works). But Google’s login flow often loads the authentication form inside an iframe embedded in the page, instead of popping a new window. If you’re trying to use window handles here, you’ll never see the login elements.

Fix for Iframe Scenario: #

First, switch to the Google login iframe, interact with the login elements, then switch back to the main page:

// Click the Google login button first (verify your locator is correct!)
driver.findElement(By.xpath(".//*[@id='authentication-login']/div/section[1]/div[3]/div/button[2]")).click();

// Wait for the Google iframe to load, then switch to it
WebDriverWait wait = new WebDriverWait(driver, 10);
WebElement googleIframe = wait.until(ExpectedConditions.presenceOfElementLocated(By.xpath("//iframe[contains(@src, 'accounts.google.com')]")));
driver.switchTo().frame(googleIframe);

// Now interact with Google login elements (e.g., enter email)
driver.findElement(By.id("identifierId")).sendKeys("your-google-email");
driver.findElement(By.id("identifierNext")).click();

// After login, switch back to the main page
driver.switchTo().defaultContent();

2. Window Handle Timing is Off (If Google Does Pop a New Window) #

If Google is popping a new window but your code isn’t catching it, it’s probably a timing issue. Your Facebook code might run fast enough, but Google’s popup might take a split second longer to load. Your current code doesn’t wait for the new window to exist, so it checks before the window is created.

Fix with Explicit Wait: #

Add a wait to ensure the new window loads before trying to switch:

// Click Google login button
driver.findElement(By.xpath(".//*[@id='authentication-login']/div/section[1]/div[3]/div/button[2]")).click();

String parentWindow = driver.getWindowHandle();
// Wait for 2 windows to exist (parent + Google popup)
WebDriverWait wait = new WebDriverWait(driver, 10);
wait.until(ExpectedConditions.numberOfWindowsToBe(2));

// Switch to the Google popup
Set<String> allWindows = driver.getWindowHandles();
for (String window : allWindows) {
    if (!window.equals(parentWindow)) {
        driver.switchTo().window(window);
        break;
    }
}

// Now interact with Google login form here
// ...

// Switch back to parent when done
driver.switchTo().window(parentWindow);

3. Double-Check Your Google Login Button Locator #

Make sure you’re actually clicking the correct Google button! The Facebook button uses button[1], so Google is likely button[2] in that container, but always verify the XPath with browser dev tools (right-click > Inspect) to confirm it’s targeting the right element.

Quick Tip to Verify: #

Run this line first to ensure the button is found and clicked:

WebElement googleButton = driver.findElement(By.xpath(".//*[@id='authentication-login']/div/section[1]/div[3]/div/button[2]"));
System.out.println("Google button text: " + googleButton.getText()); // Should print "Continue with Google" or similar
googleButton.click();

If the button text doesn’t show up, your XPath is wrong—adjust it to match the actual button’s attributes (like @data-provider="google" if that’s present).

内容的提问来源于stack exchange，提问作者Divya Master