Hi guys/gals, New macbook user here, figured I don't need to praise how it looks and feels as everyone here knows this but i am just thrilled with my experience so far. I have a Couple of questions though as I have been using windows for some years now and im trying to find the mac counterparts for some programs/features. First of all, sometimes i get this pop-up window in firefox when switching back to it from watching something in VLC (not all the time though) and not sure what it means. It doesn't have a text, i can't interact with the brower until i hit Escape. https://www.dropbox.com/s/vc38rfrik1ibgrh/Screenshot%202014-01-20%2013.20.09.png Anyone have any idea what this is? Moving on, i was wondering what is the best way to integrate my calendar from the phone's S Planner app (yes, samsung mobile) to the mac? Also, is it easier to use the stock calendar app or try a different one? Next, i know people used to say there are no viruses for mac's OS but there are things like malware ? Should i install something for my peace of mind, knowing i use my card details a lot on this machine. Battery life: overall im impressed with it, much much better than any other laptop i have owned but sometimes doing similar tasks like web browsing and word editing gives me different estimates? Sometimes id be looking at 11 hours 52 mins, which in my opinion can't be right as it's a 13" macbook pro with retina display, and sometimes less than 5. Is there a way to check if the battery is performing correct and should i tweak some more settings? Currently i use it with brightness at 50-60%, no keyboard backlight, bluetooth off. Also, can you use apps that you have purchased on your ipad on the mac? Thanks for any help!