Well, you wouldn't get what I do as everything is filtered through Proxomitron (for all browsers) and what I posted was Proxo's script for doubleclick to stop doubleclick. If I were to bypass Proxo and try Name Game's link, I'd probably get what you got. Name Game knows I use Proxo and that is why he posted those links in his reply to me.
You have to go a step further in Fx, Opera, SeaMonkey if you want to make all cookies "Session Only" EXCEPT for a few first party ones (like login ones for dslr) that you want to be permanent. You have to go into Options/Privacy and you must change the History tab to "Fx will use Custom Settings for History". That gives you choices regarding cookie handling.
Under History, uncheck "Permanent Private Browsing Mode". Then check "Accept Cookies from Sites". UNcheck "accept third party cookies". Next to "Keep Until:" open the drop down box and choose "Until I close Fx". That makes all cookies session only. If you want a few first party ones to be kept permanently then click on the "Exceptions" box on the right side and add the address of the web site where you wish FIRST PARTY cookies to be kept permanently. You have already UNchecked the box next to "accept third party cookies" so those will never be accepted at all (as session or permanent). The only ones that will be treated as first party, permanent cookies will be those from websites where you type in the address on the Exceptions screen. All other first party cookies will be treated as Session Only and automatically deleted when you close Fx.--
When governments fear people, there is liberty. When the people fear the government, there is tyranny. Thomas Jefferson