I cannot open safari due to a third party application. How do I clear the history and cookies without being able to bring up safari?

When opening Safari, the program is automatically routed to a window that pops up saying the operating system has crashed due to a third party application. I have read similar post regarding iPhones and Ipads. For those, they simply put the device in airplane mode, bring up Safari, delete the history, and then the device is fine. Since this is on my macbook, I am unaware of what steps to take to clear the history and cookies in order to avoid the pop-up.