Get the unread message count in the window title like they have over on Gmail
Google Inbox Unread E-mail Count
Miss seeing the unread e-mail count in the title area of your browser window? This extension brings it back!
This extension brings the unread e-mail count from gmail to Inbox. In addition it puts the unread count next to the Inbox link, and provides a link to view unread e-mails.
Note, if you have more than 25 unread emails it will only say 25.