According to informatino provided by SteemConnect team - yes. However, I would recommend using Vessel:

https://steemit.com/vessel/@jesta/vessel-026-server-selection-disconnected-status-message

And make sure, you are not using your master password all the time, more info here:

• What is the difference between a password and a private key(s) on Steemit and how to make your account more secure, by using them correctly.