You may be wondering, what am I talking about? Its just a silly thing which would help you work easily on Gmail. Using a Greasemonkey script developed by Lifehacker, you can easily view the total unread mails count in the favicon image of Gmail and it does not matter which page you are in – Drafts, sent items, Labels, starred, etc.
For those who don’t know what exactly favicon are, it is a tiny image used for easily recognizing a website, which can be seen behind the address bar. As you can see in the image here, the ‘Gmail Logo’ is the favicon for Gmail along with which the total unread mails count can be spotted.
So, if you are a Gmail addict like me, all I would say is just go and install this script. Also, before installing the script be sure that you are a firefox user with Greasemonkey installed in it. Oops!! I forgot to mention, as greasemonkey is only for firefox, the script can only be used in firefox.
Script Credit: Lifehacker