If it's Windows 10 then there is a messenger app - works well with one exception - if you've got Facebook open in a browser it recognises when messages are read from the app, but still alerts in the browser to new/updated conversations.
If it's Windows 10 then there is a messenger app - works well with one exception - if you've got Facebook open in a browser it recognises when messages are read from the app, but still alerts in the browser to new/updated conversations.