I have two gmail accounts, and usually a lot of tabs open. So sometimes I log into my other gmail account while a tab somewhere else still is logged in to my other. Sooner or later, the gmail with the old login session notices this, and makes a little alert() popup telling me I've been logged out, a couple minutes after I checked my emails on the other account.

Now the problem is, that firefox because of this alert() popup instantly jumps to that tab, and I lose my place in my tab-jungle. This is very annoying. How do I prevent this inactive tab from stealing my focus/alert messages autofocusing tabs?