Loading Facebook homepage instead of Messenger site

unity-webapps-facebookmessenger loads the default Facebook site ( www.facebook.com ). But Facebook now has a separate site for Messenger, which functions in a similar manner as the apps provided for smartphones. Would it not make more sense to make this Unity Facebook Messenger Webapp load the Messenger site provided by Facebook ( https://www.messenger.com ) instead of Facebook homepage? That way we can have a full Facebook Messenger integrated with Ubuntu.