How To Use The Microsoft Outlook Add-on For Edge Browser

Microsoft Edge has an official add-on for Outlook by which you can directly check for emails and schedule events without opening Outlook.com in a new tab.
Download and install it from the Edge Add-ons page here.
After it is added, initially the add-on icon would be grayed out.
Click on it and log in with your Outlook.com credentials.
It will display the Outlook inbox as a drop-down.
To compose...
How To Use Click&Clean For Microsoft Edge

Click&Clean – the useful browser clean-up add-on for Firefox and Chrome is now available for Microsoft Edge too. With just a few clicks, it can delete typed in websites, cookies, cache, browsing history, and more.
To use it in Edge, first, download it from the Edge Add-ons page here.
Then click on Add extension to finish installing it.
It will now be available next to the Edge address bar...