When adding a new email (Google IMAP), an authentication window is shown which is useless since it is asking for confirmation while there is some very few characters visible. See the attachment. Solution is to open a browser with the URL and click on OK.
Created attachment 118741 [details] Authentication window
Google imap is not supported it seems in new version...
You should be wrong.
The only way to finish the authentication is to reload the window (right-click -> reload). This is still a bug