Safari will continue to crash on the iPad 1. Sadly, it only has 256mb of ram, and after Apple updated iOS to version 5.1 I think it was, Safari started crashing constantly. Other than perhaps finding a different browser to use, there really isn't anything you can do. I got rid of my iPad 1 for the exact same reason. I'm sorry to bring you such bad news. Perhaps someone else may know a way around this and will chirp in.