I'm using Thunderbird as my default Email Client, under Win8.1.
I've never had this problem on previous versions of Win, so I'm assuming it is a Win8/8.1 problem!
If I click on an email link, within a Web-Page, I obviously expect it take me directly to my default email Client (i.e. Thunderbird) - however it takes me to a "Metro-App" that asks me if I want to create a Microsoft Account!!
The only way around this seems to be to copy/paste the details & then open Thunderbird (Just remind me why some people think this makes Win8/8.1 easier!).
Does anyone know how to configure Win8/8.1 to behave correctly?