If you're having trouble saving the tab emojis you select, try checking your browser settings or extensions, as some may prevent changes from being saved. Ensure your browser is updated, and consider using a browser that supports customizations, such as Google Chrome or Firefox.

If you're experiencing difficulty signing in to your Google account on Opera Mini for Android, try clearing cache and cookies, updating the app to the latest version, or reinstalling it. Ensure that your device has a stable internet connection and that you're entering the correct credentials. If the issue persists, contact Opera Mini support for further assistance.

If you've forgotten your password, click on the "Forgot Password?" link on the login page. Follow the prompts to reset your password via email or SMS.