Lucy
Clear your cache memory that could help if you have several windows open it fills it up the memory
Yes I tried that - I'm not running anything else and I tried restarting it too. But it uses over 80% of my 2GB memory and steadily increasing its usage until that message comes up. Then I close the whole browser, restart, then the same thing happens again, usually I have to restart 3-4 times in my 1x 100% race.