The Ubuntu Web App for Gmail in Saucy stopped appearing in the Unity Launcher when "mail.google.com" is opened... I've tried uninstalling it (through Synaptic and even selecting the conf files of the app to be purged) and then installing it again - no success. I've also tried with a completely new Firefox user account profile - no success. For ex., the Facebook Ubuntu Web App is working fine. The GMail Web App can be found in Dash but when you start it, "mail.google.com" is being opened in Firefox and again no GMail Web App in the Unity Launcher.