Private web browsing is a privacy feature in some web browsers to disable browsing history and the web cache. It can be used as an alternative to needing to clear your browser history.
Firefox
Click the menu button in the top right corner with three lines and then click New Private Window.
Chrome
At the top right, click the three vertical dots (More) and then New Incognito Window.
You can also use a keyboard shortcut to open an Incognito window:
Windows, Linux, or Chrome OS: Press Ctrl + Shift + n.
Mac: Press ⌘ + Shift + n.
Safari
Choose File > New Private Window
Edge
Select the More icon (three horizontal dots), and then choose New InPrivate window
Internet Explorer
Press Control + Shift + P.