Why Developers Choose Google Only 1. Why Developers Choose Google Only Google Sign-In is simpler to implement, more secure (OAuth 2.0), and eliminates the need for password management. This reduces the risk of hacking and improves the user experience, especially on mobile. However, it limits account recovery options. 2. Firebase's Limitations in Multi-Provider Management Firebase does not automatically merge accounts created with different providers (email, Google, Facebook, etc.). This can create duplicates or block users if they don't remember the initial method used to sign up. 3. Solutions for Users To avoid these problems: use a password manager, limit the number of Brave profiles, and prioritize a consistent authentication method. If you have multiple Gmail accounts, consider grouping them or using aliases to simplify management.