Usually laptops have soft keys , try removing the keyboard clean it reinstall it and try (dust and ants can cuse it).....if not work take it to service centre it needs repairing
try disabling your unwanted plugins and extensions......if this doesnt work try installing another browser and try from that browser
in my computer some pages wont load...so i use chrome for that pages
i think you have posted this in the correct place
try updating your graphics drivers and other drivers and directx
how much graphics do you have and what is the temperature when yo play games