Clear firefox cookies and data from single site

[Starpulkka]

Last year when tryed different versions of freenas betas etc. I had to clear firefox memory so i lost all webpages info and cookies. So today i learned that you can quickly clear single site from firefox memory. Dont know do you actually need to do this in 9.3 but its just a reminder.

Select History and Show All History from that windows you can search freenas adress by ip or name.
And right mouse click what site you want forget and select last from popup list Forget About This Site by using left mouse button. Done
And then firefox has cleared that website cookies etc.