Update the Inbox favicon with a count of unread messages
This extension updates the favicon of google inbox to show the unread count.
The numbers will go from 1-9 and then anything larger will show up as an asterisk.
When I say it's simple, I mean it's VERY Simple. It will not work with GMail. It will no work with multiple inboxes (probably).
It has only been tested with a non-categorized inbox and relies on counting the number of rows in bold. It does not use the GMail API.
It is probably not that reliable, but I built it for myself for a very specific purpose, so if it works for you, that's great!