Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
To be honest, the question alone is something I can't take serious. Lame or cool? Who gives a shit about it being cool. If you're just gonna get a tattoo for it to look cool to other people, don't even bother, it's gonna be on your body, and you'll have to live with it the rest of your life.
If you want it now, because you really 'want' and 'like' it, and regret it later, at least you can look back and say well, I loved it then, even if you regret it many years later. Rather than going "I only did this to look cool" I bet the latter will make you feel very stupid.
Do it for you if you want one, and are sure about it, not because it's 'cool' or 'lame'.
I would not get one, when you're older and realise FF is not as awesome as you once thought you will regret it.