Billy is having trouble with Adobe Flash player and the cure seems worse than the disease. He keeps getting an "exception error." Leo says that those error messages tend to be a bit useless. Leo suggests removing Flash altogether and use Google Chrome as his browser instead. Chrome has Flash built-in and keeps it isolated from the rest of the system. It's always updated through Chrome and sandboxed.
Leo also thinks that it isn't Flash that's crashing, but something that uses Flash. Billy should look and see if there's an extension that is using Flash. Extensions are usually poorly written and can often cause havoc. This is why using Chrome is best, because they're always updating them.