Works very well thanks

It works like a charm :)
I'm on Ubuntu 18.04.1 and Firefox 63.0. I use OWA of Office 365: outlook.office365.com
Note: I had to change the CSS selector in the extension preferences.

good stuff

Hi There...that's a good extension.
One thing that's missing is to control the time and frequency the email notification shows up. So, if I have a new email and I've been away from my desk for few minutes the notification only pops-up once for few seconds and then disappears. Is there a way to leave it up there like "forever" (until I close it manually) or make it pop-up every minute or so until I close it?
Thanks.

Très important