For Firefox users there is an add-on called ‘Open in Private Browsing Mode’ that enables a right click menu option to launch any link into private browsing mode. After installation, while browsing in normal mode, just right-click on a link that you would like to open in private browsing mode, and select “Open in Private Browsing mode” option. Firefox will switch to Private Browsing and automatically open the link you selected. Firefox users can install this restartless add-on from Mozilla add-on website.