Check the amount of free RAM available under " quick settings " on your notification screen. Maybe the browser is using too much memory. Also make sure the cache slider is all the way up to 6mb under the browser settings. And the last thing I can think of, don't navigate away for too long from an app (1 min. or more) , it may close automatically, that's what Android does. Don't forget to use "history" to pick up where you left off.