Chrome //
Extensions 
Chrome
Web store 
GetEmail.io for Gmail/Outlook/Salesforce
Find the Email of Anyone on Earth directly from your Gmail/Outlook/Salesforce account
App for Outlook.com
Wraps Outlook.com in a Google Chrome App so it can be used as if it were a native app on any OS.
HTML Inserter for Gmail, Outlook, Yahoo Mail
A versatile extension that allows you to easily insert HTML code into your webmail services: Gmail, Outlook, and Yahoo Mail.
Mail Checker for Outlook
Displays the number of unread messages in your Outlook inbox. You can also click the button to open your inbox.
Meeting Scheduler Gmail, Outlook, iCloud
FreeBusy eliminates the back-and-forth needed to find out when business partners or friends are available for a meeting
Multiple Accounts for Outlook.com
Get access to your email, contacts, calendar, and office online apps across multiple accounts.
