Chrome has had that for over a year (nearly two years?) now.
Congrats on chrome, but berfore they did it there already was tab mix plus and faviconize extensions which had this concept.
Yeah, everybody copies the good stuff, that's what good about competition. Don't be mean and ironic with useless information on other people's positive comments.
Both are great software, there is no need to fight over and be always looking for the fight
It wasn't meant even half as maliciously as you read into it.