1. Why Sign-in Assistant is not showing up in some login pages of Google?
Currently, Sign-in Assistant does not support all of the Google's services. Unsupported services will get supported as we work on them.
2. Quick Login suddenly stopped working. Why?
Quick Google is tightly dependent on the Google's login and logout mechanism. Google might have changed their mechanism because of which it is not working. Please contact us.
3. How secure is my password?
Quick Login uses a concept named web storage (local storage) as mentioned here to store the configuration data. This means that the configuration data is stored in your local computer. Passwords are stored along with this data encrypted using 256 bit AES encryption, which is available here. Technically, local storage is accessible only by the extension. Quick Login will NOT be responsible for the security of your local storage.
4. I'm getting a "The page you requested is invalid." message. Why?