One of several new privacy improvements and features Firefox 3.5 will bring is the ability to forget about a particular web site we have visited. In the Library, we will be able to right click on a history item, select Forget About This Site and Firefox will remove all entries related to that site from your history right away.
You can do the same thing and more with Close’n forget, a Firefox extension developed by Benoit Bailleux. SelectÂ Close and erase cookies for the current site from the context menu and you will get the same privacy boost described above.
Even further, you can set it to only have pages visited in the current tab to be forgotten and whether to include or not subdomains.
While an item in the tab context menu seems like a more natural place to access this feature to me, Close’n forget is a handy way to get more control over what Firefox knows about you.
Get if from Mozilla Add-ons.