Chrome's security is, however, light years ahead of anyone else's; it remains the sole reason I still use it. It's possible to use Little Snitch to deny Keystone/ksupdate all network access, which is what I do, which removes the Google RCE vulnerability it places on your machine. Make sure to periodically manually update Chrome, however.
give evidence to support your claim. I've been using Firefox for the past 10 years and I fail to see how it's insecure. I do see however, how it's not nearly as user-hostile as chrome.