Safari Crashes my Mac if I have more than 9 tabs open at a time

I normally use FF and have as many as 30 tabs going at once. I use Safari as a backup in case FF is giving me trouble. However, on this machine, I have never been able to get Safari to handle more than 9, maybe 10 tabs open at one time. If I have more, it crashes the whole machine. I am running the latest version of Safari as far as I know.

What should I do?

Sorry I posted the above when i was logged into my girlfriend's account. Dear Mods, I apologize. I shall restart the thread in my own account.