Hi there! I see you're having trouble connecting Criminal Case to Facebook on your WebKit browser with Android 10. Let’s work through this together.

First, to clarify: Are you trying to log in to Criminal Case using your Facebook account and the connection is failing? Or is the issue happening somewhere else in the game? Also, do you get any error messages, or does the connection just time out?

Meanwhile, here are some basic steps to try that often resolve Facebook connection errors with Criminal Case:

1. Check Your Internet Connection: Make sure your device is connected to a stable Wi-Fi network rather than relying on mobile data (3G/4G). Sometimes mobile network restrictions cause sync problems.

2. Clear Browser Cache: Since you’re using WebKit browser, try clearing the cache. You can do this by going to your browser settings → Privacy → Clear browsing data (cache and cookies).

3. Update Your Browser: Ensure your WebKit browser is updated to the latest version available.

4. Retry Facebook Login: Close the Criminal Case game, log out of Facebook on your browser, then log back in and attempt linking again.

5. Reinstall Facebook App (If applicable): If you have the Facebook app installed on your device, try uninstalling it, then connect Criminal Case to Facebook via the browser first, and afterward reinstall the Facebook app. This method has helped some users fix login sync errors.

If you have tried any of these, let me know which ones so I don’t repeat them. If after these steps the issue persists, we can look into more advanced troubleshooting like checking Facebook app permissions on your device or possible game server issues.

Does that sound good? Let me know how it goes or if you want me to walk you through any step!