4.2 Suppress Caching Start the Firefox application. Go to the Tools and then click on the Options. Click on the Privacy tab.Privacy window displayed. Figure 4-2 PrivacyDescription of "Figure 4-2 Privacy" Under the History, select Use custom settings for history option from the drop-down list for the Firefox will field. Check the Automatically start Firefox in a private browsing session option . Click on the OK. Parent topic: Firefox (Latest Qualified Version) Configuration