I don&#x27;t see why it couldn&#x27;t, they are doing it for FireFox.  On the other hand Mozilla has been on the path to retire Thunderbird for some time, this is just the next step.<p>Mostly I think it is an effort vs reward thing.  Thunderbird doesn&#x27;t have the user base and doesn&#x27;t have a revenue stream the way fire fox sells the search box.  I wonder if anyone over there has thought about cleaning it up and selling it as a white label email client.