Wouldn’t it be great to receive notifications of new email without constantly having to switch back and forth between your email tab and your other tabs? Gmail has just introduced desktop notifications which brings IM-client like mail and chat notifications to the browser.
These HTML5 notifications are currently only supported by Google Chrome and popup whenever a new email or chat message comes in.
To activate this new feature, simply visit Gmail Settings > General and find options for Desktop Notifications. You can choose to have notifications show for all new email or just those marked important by Priority Inbox.

Enable Gmail Desktop Notifications
Then, Chrome will ask you whether or not to allow mail.google.com to show Desktop Notifications.
Gmail needs permission to show desktop notifications
After clicking Allow and enabling the New Mail Notifications from the Settings, you will being receiving notifications whenever new email or chat messages arrive.

New Mail Notification

New Chat Notifications
What do you think of this new feature? Share your thoughts in the comments.
Desktop notifications for emails and chat messages [via Gmail Blog]