Bombastic Rated 5 out of 5 stars

Really really cool addon. It really tricks Gmail to detect HTML5 notifier as it does in Chrome. Can it work for new tweets also? Probably not unless Twitter has HTML5 notification built-in.

This review is for a previous version of the add-on ( 

Very fantastic

Thank you for your support ! Indeed, it has to be twitter job... or yours with a new extension "Twitter Notifications" ;)