For some reason, the cookie exception list is considered to be a "site preference" - so If you have

For some reason, the cookie exception list is considered to be a "site preference" - so If you have Firefox set to delete "site preferences" (among the other options) when you exit, for some reason it deletes all of these exceptions... so everything gets deleted. I have it set not to delete "site preferences" but to delete cookies, etc. This way it deletes all cookies and leaves the exception list as is. It's a completely nonsensical way of implementing this feature, if you ask me. And what else is considered a "site preference"?? Oh well ;)