Mailto links open Microsoft Office 365 Webmail / Outlook Web Application Compose by default
... the missing bit of functionality that Microsoft should have provided?
With the MailtOWA extension installed, mailto: links will automatically open O365 Webmail / Outlook Web Application (OWA) by default.
That's it. Nothing fancy. No ads or any other nonsense.
... Built to satisfy my own needs, released for free because other folks seem to have the same problem.
If you like it, leave a review. I need more internet points!
A free extension by i❤️.ws Emoji Domains
Source code: github.com/jonroig/MailtOWA