Chrome mailto extension
complete
Etienne Lemay
complete
Philippe Lehoux
If you're using the native app, it's possible (see screenshot). Or are you talking of opening Missive web version?
Andrew Rasmussen
I meant the web version but I'll try the OS X one today! Thanks.
F
Franck Lahaye
also see https://developers.google.com/web/updates/2011/06/Registering-a-custom-protocol-handler to add it to chrome and FF