Once installed you can load the private history sidebar using CTRL+SHIFT+U as the shortcut keyboard key, or otherwise by selecting on Firefox View-> Sidebar-> PrivateBrowsingRetriever. To install PrivateBrowsingHistoryRecovery visit this extension page and hit Add to Firefox button and restart your browser. The Nicoleta developer behind this extension says that, “The extension was implemented as a part of my dissertation project with the aim to illustrate the limitations found on private browsing mode.” Your private browsing history can be easily recovered with one of the Firefox extension, PrivateBrowsingHistoryRecovery. You might be thinking private browsing will save you from other users of computer snooping into browser history unfortunately that’s not true.
You can enable Firefox private browsing by hitting Ctrl+Shift+P shortcut or via Firefox Menu -> Start Private Browsing option. In a regular browsing session Firefox or any other browser tracks and records lots of data such as the site user visits, search bar entries, download lists, cookies & web cache files but if you don’t want Firefox to record this stuff then that’s where private browsing comes to the rescue. Firefox Private browsing was introduced in Firefox 3.5 with the goal to protect user privacy.