Advantages and Disadvantages of Private Browsing
Private browsing is a great tool for keeping prying eyes away from your most sensitive browsing habits. Introduced ostensibly as a means of doing some online shopping without family finding out about what you have purchased before it arrives, there are clearly other uses, such as covering up the visiting of gambling and other adult websites.
You can configure how Firefox records your history via Firefox > Preferences > Privacy; this enables you to toggle between an always-off history function, an always-on recording of your visited websites (private browsing notwithstanding) and using custom settings. With a bit if experimentation in this area, you will be able to setup various useful configurations.
While the idea of private browsing might seem attractive, however, there are various downsides to it.
For instance, any interesting websites that you happened across will not be available to be visited again in the future, leaving you with the tricky task of trying to remember how you got there.
Most importantly, it should be recognized that using private browsing on a computer where a family safety application is installed might result in the browsing session being recorded, and certainly if used on a browser in a corporate location your history of visited websites will be recorded, perhaps with embarrassing consequences.