Safari continually crashing

Safari is crashing regularly when open. There are days when it crashes the moment I open it and will not let me run the program at all throughout the day. What is going on? There is no support from Apple Canada because I have no more warranty and it is impossible to get an answer from this multi-billion dollar corporation about their own products. I am not a computer wiz and am just thankful that I have chrome uploaded or I would rarely have access to the internet - can anyone help me resolve the Safari issue?