$rootscope refresh problem

[kumar04anil]

Hi,
#1.My issue is ,while reloading the or refresh the any html page its data getting lost or vanished from the $rootScope,and my data is also too heavy so, i can't able to store it in local storage for reinitilize it to $rootscope.
can any one please suggest me any solution for it.
and i also want to reconize the F5 or reload event how i can do it
#2. my application is behaving differently in different browser how we can fix that browser compatibality.