Private browsing is a feature that Web browsers such as Internet Explorer, Firefox and Chrome provide to protect your privacy while surfing the Internet and block websites from tracking your online behavior. However, if you want websites to remember you, if you want your browser to store your preferences and history, or if it's necessary for parental control, you do have the option to disable private browsing.
Disable InPrivate Browsing in IE
Press the Windows and R keys together from any screen to open the Run dialog box. Type gpedit.msc to open the Local Group Policy Editor window.
Click Computer Configuration to expand the list in the Console Tree and click the Administrative Templates folder. Choose Internet Explorer from among the list in the Windows Components folder.
Click the Privacy sub-folder in the Internet Explorer folder and double-click the Turn off InPrivate Browsing setting in the window on the right side.
Click the Enabled radio button and click Apply to apply the setting. Click OK to complete the task. The InPrivate Browsing option under Tools in the menu bar of IE will turn into an un-clickable selection after you apply this setting, thus disabling private browsing.
Disable Private Window in Firefox
Open Disable Private Browsing Add-on with the Firefox browser and click the Add to Firefox button.
Click Install Now in the dialog box.
Click Restart Now in the pop-up after the installation is complete and wait for Firebox to reboot in order to apply the change.
Choose New Private Window from the Open menu to test the result.
Confirm that private browsing has been disabled.
Disable Incognito in Chrome
Open Incognito Gone while using the Chrome browser and click Disable for the Google Chrome (Incognito Mode) option in the Incognito Gone dialog box.
Click Yes to confirm the change. This change is irrevocable. Do not disable Incognito unless you want it to be disabled permanently. If you find later that you want Incognito back, you will need to uninstall and reinstall Google Chrome.
Open Google Chrome and check the Customize and control Google Chrome menu. New incognito window no longer exists.